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LT1815 LT1816/LT1817 Single/Dual/Quad 220MHz, 1500V/s Operational Amplifiers with Programmable Supply Current
FEATURES
s s s s s s s s s s s s s s s
DESCRIPTIO
220MHz Gain-Bandwidth Product 1500V/s Slew Rate 6.5mA Supply Current per Amplifier Space Saving MSOP and SSOP Packages Ultra Small SOT-23 and Leadless DFN Packages Programmable Current Option 6nV/Hz Input Noise Voltage Unity-Gain Stable 1.5mV Maximum Input Offset Voltage 8A Maximum Input Bias Current 800nA Maximum Input Offset Current 50mA Minimum Output Current, VOUT = 3V 3.5V Minimum Input CMR, VS = 5V Specified at 5V, Single 5V Supplies Operating Temperature Range: - 40C to 85C
The LT(R)1815/LT1816/LT1817 are low power, high speed, very high slew rate operational amplifiers with excellent DC performance. The LT1815/LT1816/LT1817 feature higher bandwidth and slew rate, much lower input offset voltage and lower noise and distortion than other devices with comparable supply current. A programmable current option (LT1815 and LT1816A) allows power savings and flexibility by operating at reduced supply current and speed. The circuit topology is a voltage feedback amplifier with the slewing characteristics of a current feedback amplifier. The output drives a 100 load to 3.8V with 5V supplies. On a single 5V supply, the output swings from 1V to 4V with a 100 load connected to 2.5V. Harmonic distortion is -70dB for a 5MHz, 2VP-P output driving a 100 load in a gain of -1. The LT1815/LT1816/LT1817 are manufactured on Linear Technology's advanced low voltage complementary bipolar process and are available in a variety of SOT-23, SO, MSOP, SSOP and leadless DFN packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s s s s s s s
Wideband Amplifiers Buffers Active Filters Video and RF Amplification Communication Receivers Cable Drivers Data Acquisition Systems
TYPICAL APPLICATIO
Distortion vs Frequency
-30 AV = 2 VS = 5V VO = 2VP-P RL = 100
Programmable Current Amplifier Switches from Low Power Mode to Full Speed Mode
500 500
-40 -50 -60 -70 -80 -90
DISTORTION (dB)
5V
3RD HARMONIC
-
VIN LT1815 VOUT 100 ISET HS/LP 40k -5V
181567 TA01
2ND HARMONIC 3RD HARMONIC FULL SPEED MODE
+
-100 100k
U
LOW POWER MODE 2ND HARMONIC 1M FREQUENCY (Hz) 10M
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U
U
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1
LT1815 LT1816/LT1817
ABSOLUTE AXI U
V -)
RATI GS
Total Supply Voltage (V +
to .......................... 12.6V Differential Input Voltage (Transient Only, Note 2) ..................................... 6V Input Voltage .......................................................... VS Output Short-Circuit Duration (Note 3) ............ Indefinite Operating Temperature Range ................ - 40C to 85C
PACKAGE/ORDER I FOR ATIO
TOP VIEW OUT 1 V- 2 +IN 3 + - 4 -IN 5V
+
TOP VIEW OUT 1 V- 2 +IN 3 + - 6 V+ 5 ISET 4 -IN
S5 PACKAGE 5-LEAD PLASTIC SOT-23
S6 PACKAGE 6-LEAD PLASTIC SOT-23
TJMAX = 150C, JA = 250C/W (NOTE 9)
TJMAX = 150C, JA = 230C/W (NOTE 9)
ORDER PART NUMBER LT1815CS5 LT1815IS5
OUT A -IN A +IN A V- 1 2 3 4
S5 PART MARKING LTUP LTVC
8 7 6 5 V+ OUT B -IN B +IN B
ORDER PART S6 PART ORDER PART S8 PART ORDER PART NUMBER NUMBER MARKING NUMBER MARKING LT1816CDD LT1815CS6 LTUL 1815 LT1815CS8 LT1816IDD LT1815IS6 1815I LTVD LT1815IS8
TOP VIEW OUT A -IN A +IN A V- V- 1 2 3 4 5 A B 10 9 8 7 6 V+ OUT B -IN B +IN B ISET
OUT A 1 -IN A 2 A +IN A 3 V- B 4 TOP VIEW
TOP VIEW
A B
MS8 PACKAGE 8-LEAD PLASTIC MSOP
TJMAX = 150C, JA = 250C/W (NOTE 9)
MS10 PACKAGE 10-LEAD PLASTIC MSOP
TJMAX = 150C, JA = 250C/W (NOTE 9)
ORDER PART NUMBER LT1816CMS8 LT1816IMS8
TOP VIEW OUT A -IN A +IN A V+ +IN B -IN B OUT B NC 1 2 3 4 5 6 7 8 + B - - A +
MS8 PART MARKING LTWA LTNQ
16 OUT D - 15 -IN D D + 14 +IN D 13 V - + 12 +IN C C - 11 -IN C 10 OUT C 9 NC
ORDER PART NUMBER LT1816ACMS LT1816AIMS ORDER PART NUMBER LT1817CGN LT1817IGN GN PART MARKING 1817 1817I
GN PACKAGE 16-LEAD PLASTIC SSOP
TJMAX = 150C, JA = 135C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grades are identified by a label on the shipping container.
2
U
U
W
WW
U
W
(Note 1)
Specified Temperature Range (Note 8) ... - 40C to 85C Maximum Junction Temperature ......................... 150C (DD Package) ................................................... 125C Storage Temperature Range ................. - 65C to 150C (DD Package) ................................... - 65C to 125C Lead Temperature (Soldering, 10 sec).................. 300C
TOP VIEW
TOP VIEW NC 1 -IN 2 +IN 3 V- 4 - + 8 7 6 5 NC V+ OUT NC
OUT A -IN A +IN A V-
1 2 3 4 A B
8 7 6 5
V+ OUT B -IN B +IN B
S8 PACKAGE 8-LEAD PLASTIC SO
TJMAX = 150C, JA = 150C/W (NOTE 9)
DD PACKAGE 8-LEAD (3mm x 3mm) PLASTIC DFN
TJMAX = 125C, JA = 160C/W (NOTE 9)
UNDERSIDE METAL INTERNALLY CONNECTED TO V -
DD PART MARKING* LAAR
8 V+ 7 OUT B 6 -IN B 5 +IN B
S8 PACKAGE 8-LEAD PLASTIC SO
TJMAX = 150C, JA = 150C/W (NOTE 9)
MS10 PART MARKING LTYA LTXX
OUT A -IN A +IN A V+ +IN B -IN B OUT B 1 2 3 4 5 6 7 + B - - A +
ORDER PART NUMBER LT1816CS8 LT1816IS8
TOP VIEW 14 OUT D - 13 -IN D D + 12 +IN D 11 V - + 10 +IN C C - 9 -IN C 8 OUT C
S8 PART MARKING 1816 1816I ORDER PART NUMBER LT1817CS LT1817IS
S PACKAGE 14-LEAD PLASTIC SO
TJMAX = 150C, JA = 100C/W
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LT1815 LT1816/LT1817
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C (Note 8). VS = 5V, VCM = 0V unless otherwise noted. For the programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V - through 75 or less, unless otherwise noted.
SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS (Note 4) TA = 0C to 70C TA = - 40C to 85C LT1815S6/LT1816A, 40k Between ISET and V - TA = 0C to 70C TA = - 40C to 85C TA = 0C to 70C (Note 7) TA = - 40C to 85C (Note 7) TA = 0C to 70C TA = - 40C to 85C IB Input Bias Current TA = 0C to 70C TA = - 40C to 85C en in RIN CIN VCM CMRR Input Noise Voltage Density Input Noise Current Density Input Resistance Input Capacitance Input Voltage Range Common Mode Rejection Ratio Guaranteed by CMRR TA = -40C to 85C VCM = 3.5V TA = 0C to 70C TA = - 40C to 85C Guaranteed by PSRR TA = - 40C to 85C VS = 2V to 5.5V TA = 0C to 70C TA = - 40C to 85C VOUT = 3V, RL = 100, LT1816/LT1817 TA = 0C to 70C TA = - 40C to 85C VOUT = 3V, RL = 500 TA = 0C to 70C TA = - 40C to 85C VOUT = 3V, RL = 100 TA = 0C to 70C TA = - 40C to 85C VOUT Maximum Output Swing RL = 500, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C RL = 100, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C
q q q q q q q q q q q q q q q q q q q q
ELECTRICAL CHARACTERISTICS
MIN
TYP 0.2
MAX 1.5 2.0 3.0 7 9 10 15 30 800 1000 1200 8 10 12
UNITS mV mV mV mV mV mV V/C V/C nA nA nA A A A nV/Hz pA/Hz M k pF V V dB dB dB
Input Offset Voltage (Low Power Mode) (Note 10) VOS T IOS Input Offset Voltage Drift Input Offset Current
2
q q q q q q
10 10 60
-2
f = 10kHz f = 10kHz VCM = 3.5V Differential 1.5
6 1.3 5 750 2 3.5 3.5 75 73 72 4.2 85
Minimum Supply Voltage PSRR Power Supply Rejection Ratio
1.25 78 76 75 82 81 80 1.5 1.0 0.8 0.7 0.5 0.4 3.8 3.7 3.6 3.50 3.25 3.15 97
2 2
V V dB dB dB dB dB dB V/mV V/mV V/mV V/mV V/mV V/mV V V V V V V
Channel Separation
100
AVOL
Large-Signal Voltage Gain
3
2.5
4.1 3.8
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LT1815 LT1816/LT1817
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C (Note 8). VS = 5V, VCM = 0V unless otherwise noted. For the programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V - through 75 or less, unless otherwise noted.
SYMBOL PARAMETER IOUT Maximum Output Current CONDITIONS VOUT = 3V, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C LT1815S6/LT1816A; 40k Between ISET and V - ; VOUT = 3V, 30mV Overdrive TA = 0C to 70C TA = -40C to 85C VOUT = 0V, 1V Overdrive (Note 3) TA = 0C to 70C TA = -40C to 85C AV = -1 (Note 5) TA = 0C to 70C TA = - 40C to 85C 6VP-P (Note 6) f = 200kHz, RL = 500, LT1815 TA = 0C to 70C TA = - 40C to 85C f = 200kHz, RL = 500, LT1816/LT1817 TA = 0C to 70C TA = - 40C to 85C Gain-Bandwidth Product (Low Power Mode) (Note 10) LT1815S6/LT1816A; 40k Between ISET and V - ; f = 200kHz, RL = 500 TA = 0C to 70C TA = - 40C to 85C AV = 1, RL = 500 AV = 1, 10% to 90%, 0.1V, RL = 100 AV = 1, 50% to 50%, 0.1V, RL = 100 AV = 1, 0.1V; RL = 100 AV = - 1, 0.1%, 5V AV = 2, f = 5MHz, VOUT = 2VP-P, RL = 500 AV = 2, VOUT = 2VP-P, RL = 150 AV = 2, VOUT = 2VP-P, RL = 150 AV = 1, f = 1MHz LT1815 TA = 0C to 70C TA = - 40C to 85C LT1816/LT1817, per Amplifier TA = 0C to 70C TA = - 40C to 85C Supply Current (Low Power Mode) (Note 10) LT1815S6/LT1816A, 40k Between ISET and V -, per Amplifier TA = 0C to 70C TA = - 40C to 85C LT1815S6/LT1816A TA = 0C to 70C TA = - 40C to 85C
q q q q q q q q
ELECTRICAL CHARACTERISTICS
MIN 50 45 40 50 40 30 100 90 70 900 750 600 150 140 130 140 130 120 35 30 25
TYP 80
MAX
UNITS mA mA mA mA mA mA mA mA mA V/s V/s V/s MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz ns ns % ns dB % Deg
Maximum Output Current (Low Power Mode) (Note 10)
75 200
q q q q q q
ISC
Output Short-Circuit Current
SR
Slew Rate
1500
FPBW GBW
Full-Power Bandwidth Gain-Bandwidth Product
80 220
220
55
q q
-3dB BW -3dB Bandwidth tr, tf tPD OS tS THD dG dP ROUT IS Rise Time, Fall Time Propagation Delay Overshoot Settling Time Total Harmonic Distortion Differential Gain Differential Phase Output Resistance Supply Current
350 1 1.4 25 15 - 70 0.08 0.04 0.20 6.5 7 9 10 7.8 10.5 11.5 1.5 1.8 2.0
mA mA mA mA mA mA mA mA mA A A A
6.5
q q
1
q q q q
ISET
ISET Pin Current (Note 10)
-150 -175 -200
- 100
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LT1815 LT1816/LT1817
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C (Note 8). VS = 5V, 0V; VCM = 2.5V, RL to 2.5V unless otherwise noted. For the programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V - through 75 or less, unless otherwise noted.
SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS (Note 4) TA = 0C to 70C TA = - 40C to 85C LT1815S6/LT1816A, 40k Between ISET and V - TA = 0C to 70C TA = - 40C to 85C TA = 0C to 70C (Note 7) TA = - 40C to 85C (Note 7) TA = 0C to 70C TA = - 40C to 85C IB Input Bias Current TA = 0C to 70C TA = - 40C to 85C en in RIN CIN VCM Input Noise Voltage Density Input Noise Current Density Input Resistance Input Capacitance Input Voltage Range (High) Input Voltage Range (Low) CMRR Common Mode Rejection Ratio Guaranteed by CMRR TA = - 40C to 85C Guaranteed by CMRR TA = - 40C to 85C VCM = 1.5V to 3.5V TA = 0C to 70C TA = - 40C to 85C VOUT = 1.5V to 3.5V, RL = 100, LT1816/LT1817 TA = 0C to 70C TA = - 40C to 85C Guaranteed by PSRR TA = - 40C to 85C VOUT = 1.5V to 3.5V, RL = 500 TA = 0C to 70C TA = - 40C to 85C VOUT = 1.5V to 3.5V, RL = 100 TA = 0C to 70C TA = - 40C to 85C VOUT Maximum Output Swing (High) RL = 500, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C RL = 100, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C
q q q q q q q q q q q q q q q q q q q
ELECTRICAL CHARACTERISTICS
MIN
TYP 0.4
MAX 2.0 2.5 3.5 7 9 10 15 30 800 1000 1200 8 10 12
UNITS mV mV mV mV mV mV V/C V/C nA nA nA A A A nV/Hz pA/Hz M k pF V V
Input Offset Voltage (Low Power Mode) (Note 10) VOS T IOS Input Offset Voltage Drift Input Offset Current
2
q q q q q q
10 10 60
- 2.4
f = 10kHz f = 10kHz VCM = 1.5V to 3.5V Differential 1.5
6 1.3 5 750 2 3.5 3.5 4.1 0.9 73 71 70 81 80 79 82 1.5 1.5
V V dB dB dB dB dB dB
Channel Separation
100
Minimum Supply Voltage AVOL Large-Signal Voltage Gain
2.5 1.0 0.7 0.6 0.7 0.5 0.4 3.9 3.8 3.7 3.7 3.6 3.5 2
4 4
V V V/mV V/mV V/mV V/mV V/mV V/mV V V V V V V
1.5
4.2
4
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LT1815 LT1816/LT1817
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C (Note 8). VS = 5V, 0V; VCM = 2.5V, RL to 2.5V unless otherwise noted. For the programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V - through 75 or less, unless otherwise noted.
SYMBOL PARAMETER VOUT Maximum Output Swing (Low) CONDITIONS RL = 500, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C RL = 100, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C IOUT Maximum Output Current VOUT = 1.5V or 3.5V, 30mV Overdrive TA = 0C to 70C TA = - 40C to 85C LT1815S6/LT1816A; 40k Between ISET and V - ; VOUT = 1.5V or 3.5V, 30mV Overdrive TA = 0C to 70C TA = -40C to 85C VOUT = 2.5V, 1V Overdrive (Note 3) TA = 0C to 70C TA = -40C to 85C AV = -1 (Note 5) TA = 0C to 70C TA = - 40C to 85C 2VP-P (Note 6) f = 200kHz, RL = 500, LT1815 TA = 0C to 70C TA = - 40C to 85C f = 200kHz, RL = 500, LT1816/LT1817 TA = 0C to 70C TA = - 40C to 85C Gain-Bandwidth Product (Low Power Mode) (Note 10) LT1815S6/LT1816A; 40k Between ISET and V - ; f = 200kHz, RL = 500 TA = 0C to 70C TA = - 40C to 85C AV = 1, RL = 500 AV = 1, 10% to 90%, 0.1V, RL = 100 AV = 1, 50% to 50%, 0.1V, RL = 100 AV = 1, 0.1V; RL = 100 AV = - 1, 0.1%, 2V AV = 2, f = 5MHz, VOUT = 2VP-P, RL = 500 AV = 2, VOUT = 2VP-P, RL = 150 AV = 2, VOUT = 2VP-P, RL = 150 AV = 1, f = 1MHz LT1815 TA = 0C to 70C TA = - 40C to 85C LT1816/LT1817, per Amplifier TA = 0C to 70C TA = - 40C to 85C Supply Current (Low Power Mode) (Note 10) LT1815S6/LT1816A, 40k Between ISET and V -, per Amplifier TA = 0C to 70C TA = - 40C to 85C
q q q q q q q q
ELECTRICAL CHARACTERISTICS
MIN
TYP 0.8
MAX 1.1 1.2 1.3 1.3 1.4 1.5
UNITS V V V V V V mA mA mA mA mA mA mA mA mA V/s V/s V/s MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz ns ns % ns dB % Deg
1
q q q q
30 25 20 30 25 20 80 70 50 450 375 300 140 130 120 130 110 100 30 25 20
50
Maximum Output Current (Low Power Mode) (Note 10)
50 140
q q q q q q
ISC
Output Short-Circuit Current
SR
Slew Rate
750
FPBW GBW
Full-Power Bandwidth Gain-Bandwidth Product
120 200
200
50
q q
-3dB BW -3dB Bandwidth tr, tf tPD OS tS THD dG dP ROUT IS Rise Time, Fall Time Propagation Delay Overshoot Settling Time Total Harmonic Distortion Differential Gain Differential Phase Output Resistance Supply Current
300 1.2 1.5 25 15 - 65 0.08 0.13 0.24 6.3 8 10 11 9 12 13 1.5 1.8 2.0
mA mA mA mA mA mA mA mA mA
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6.3
q q
0.9
q q
6
LT1815 LT1816/LT1817
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER ISET ISET Pin Current (Note 10)
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C (Note 8). VS = 5V, 0V; VCM = 2.5V, RL to 2.5V unless otherwise noted. For the programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V - through 75 or less, unless otherwise noted.
CONDITIONS LT1815S6/LT1816A TA = 0C to 70C TA = - 40C to 85C
q q
MIN -150 -175 -200
TYP - 100
MAX
UNITS A A A
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Differential inputs of 6V are appropriate for transient operation only, such as during slewing. Large sustained differential inputs can cause excessive power dissipation and may damage the part. Note 3: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely. Note 4: Input offset voltage is pulse tested and is exclusive of warm-up drift. Note 5: Slew rate is measured between 2V at the output with 3V input for 5V supplies and 2VP-P at the output with a 3VP-P input for single 5V supplies. Note 6: Full-power bandwidth is calculated from the slew rate: FPBW = SR/2VP. Note 7: This parameter is not 100% tested.
Note 8: The LT1815C/LT1816C/LT1817C are guaranteed to meet specified performance from 0C to 70C and are designed, characterized and expected to meet the extended temperature limits, but are not tested at - 40C and 85C. The LT1815I/LT1816I/LT1817I are guaranteed to meet the extended temperature limits. Note 9: Thermal resistance (JA) varies with the amount of PC board metal connected to the package. The specified values are for short traces connected to the leads. If desired, the thermal resistance can be substantially reduced by connecting Pin 2 of the SOT-23, Pin 4 of the SO-8 and MS8, Pin 5 of the MS10 or the underside metal of the DD package to a large metal area. Note 10: A resistor of 40k or less is required between the ISET and V - pins of the LT1815S6 and the LT1816AMS. See the applications section for information on selecting a suitable resistor.
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Temperature
12 PER AMPLIFIER 10 V+ - 0.5
INPUT COMMON MODE RANGE (V)
INPUT BIAS CURRENT (A)
SUPPLY CURRENT (mA)
8 VS = 5V 6 4 2 0 -50 -25 VS = 2.5V
50 25 0 75 TEMPERATURE (C)
UW
100
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Input Common Mode Range vs Supply Voltage
TA = 25C VOS < 1mV 0
Input Bias Current vs Common Mode Voltage
TA = 25C VS = 5V
-1.0 -1.5 - 2.0
-1
-2
2.0 1.5 1.0 0.5 V-
-3
125
0
1
4 3 2 5 SUPPLY VOLTAGE ( V)
6
7
-4 - 5.0
0 2.5 - 2.5 INPUT COMMON MODE VOLTAGE (V)
5.0
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LT1815 LT1816/LT1817 TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current vs Temperature
0
INPUT VOLTAGE NOISE (nV/Hz)
-0.4
INPUT BIAS CURRENT (A)
-0.8 -1.2 -1.6 -2.0 -2.4 -2.8 -50 -25 VS = 5V VS = 2.5V
OPEN-LOOP GAIN (dB)
50 25 75 0 TEMPERATURE (C)
Open-Loop Gain vs Temperature
75.0 72.5
OPEN-LOOP GAIN (dB)
VS = 5V VO = 3V
OUTPUT VOLTAGE SWING (V)
70.0 67.5 65.0 62.5 60.0 -50 -25
RL = 500
-1.5 - 2.0
RL = 100
OUTPUT VOLTAGE SWING (V)
RL = 100
50 25 75 0 TEMPERATURE (C)
Output Short-Circuit Current vs Temperature
240
OUTPUT SHORT-CIRCUIT CURRENT (mA)
VS = 5V VIN = 1V
SOURCE 125
200 160 120 80 40 0 -50 -25
OUTUPT CURRENT (mA)
SINK
100 75
SINK, VS = 5V
SOURCE, VS = 2.5V
OUTPUT IMPEDANCE ()
50 25 75 0 TEMPERATURE (C)
8
UW
100
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Input Noise Spectral Density
100 TA = 25C VS = 5V AV = 101 RS = 10k in 10 en 1 10
INPUT CURRENT NOISE (pA/Hz) 75.0 72.5 70.0
Open-Loop Gain vs Resistive Load
TA = 25C
VS = 5V 67.5 VS = 2.5V 65.0 62.5 60 100
1
125
10
100
1k 10k FREQUENCY (Hz)
0.1 100k
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1k LOAD RESISTANCE ()
10k
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Output Voltage Swing vs Supply Voltage
TA = 25C - 0.5 VOS = 30mV -1.0 V+ RL = 500
Output Voltage Swing vs Load Current
5 TA = 25C VS = 5V VOS = 30mV SOURCE
OUTPUT VOLTAGE SWING (V)
4
-2 SINK
3
2.0 1.5 1.0 0.5 V- RL = 500 0 1 4 3 2 5 SUPPLY VOLTAGE ( V) 6 7 RL = 100
-3
2
-4
100
125
-5 -120
-80
0 40 80 -40 OUTPUT CURRENT (mA)
120
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181567 G07
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Output Current vs Temperature
150
Output Impedance vs Frequency
100
SOURCE, VS = 5V
10
AV = 100 AV = 10
1
SINK, VS = 2.5V 50 25 VOS = 30mV VOUT = 3V FOR VS = 5V VOUT = 1V FOR VS = 2.5V 50 25 75 0 TEMPERATURE (C) 100 125
0.1
AV = 1
100
125
0 -50 -25
0.01 10k
TA = 25C VS = 5V 100k 1M 10M FREQUENCY (Hz) 100M
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181567 G10
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LT1815 LT1816/LT1817 TYPICAL PERFOR A CE CHARACTERISTICS
Gain and Phase vs Frequency
80 70 60 50 GAIN 5V 2.5V 180 160 140
GAIN BANDWIDTH (MHz)
GAIN (dB)
30 20 10
180
40 20 0 100M -20 500M
PHASE MARGIN VS = 5V PHASE MARGIN VS = 2.5V
40
GAIN (dB)
40
100 PHASE 80 2.5V 5V 60
TA = 25C -10 AV = -1 RF = RG = 500 -20 100k 1M 10M 10k FREQUENCY (Hz)
0
Gain vs Frequency, AV = 2
10 RL = 500 5
GAIN BANDWIDTH (MHz)
5 RL = 100 0
GAIN (dB)
GAIN (dB)
0
TA = 25C -5 A = 2 V VS = 5V RF = RG = 500 CF = 1pF -10 1M 10M FREQUENCY (Hz)
Power Supply Rejection Ratio vs Frequency
100
POWER SUPPLY REJECTION RATIO (dB)
80 +PSRR 60 -PSRR
COMMON MODE REJECTION RATIO (dB)
40
20
0 1k 10k 1M 100k FREQUENCY (Hz) 10M 100M
UW
181567 G13
Gain Bandwidth and Phase Margin vs Temperature
240
5
Gain vs Frequency, AV = 1
TA = 25C AV = 1 VS = 5V RL = 500
RL = 500
GBW VS = 5V GBW VS = 2.5V
PHASE MARGIN (DEG)
220
PHASE (DEG)
120
0 RL = 100
200
-5
38
-50 -25
50 25 0 75 TEMPERATURE (C)
100
36 125
-10 1M
10M 100M FREQUENCY (Hz)
500M
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Gain vs Frequency, AV = - 1
240 220
RL = 500 RL = 100
Gain Bandwidth and Phase Margin vs Supply Voltage
TA = 25C GBW RL = 500
PHASE MARGIN (DEG)
200 180 160 PHASE MARGIN RL = 100 40 PHASE MARGIN RL = 500 GBW RL = 100 45
-5
100M
300M
-10 1M
TA = 25C AV = -1 VS = 5V RF = RG = 500 CF = 1pF 10M FREQUENCY (Hz) 100M 300M
35 7
0
1
5 4 3 SUPPLY VOLTAGE (V) 2
6
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Common Mode Rejection Ratio vs Frequency
100 TA = 25C VS = 5V
TA = 25C AV = 1 VS = 5V
80
60
40
20
0 1k 10k 1M 100k FREQUENCY (Hz) 10M 100M
181567 G20
181567 G21
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LT1815 LT1816/LT1817 TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Programming Resistor
7 6 VS = 5V TA = 25C PER AMPLIFIER 250
GAIN BANDWIDTH (MHz)
SUPPLY CURRENT (mA)
4 3 2 1 0 10 100 1k 10k RSET PROGRAMMING RESISTOR () 40k
150 RL = 100 100
SLEW RATE (V/s)
5
Slew Rate vs Supply Voltage
1200 TA =25C AV = -1 VIN = 2VP-P 1000 RF = RG = RL = 500
VS = 5V SR VS = 5V
-
DIFFERENTIAL PHASE (DEG)
SLEW RATE (V/s)
SLEW RATE (V/s)
800
SR + SR -
600
400 0 1 4 3 2 5 SUPPLY VOLTAGE (V) 6 7
Distortion vs Frequency, AV = 2
-30 -40 -50 -60 -70 -80 -90 -100 100k 2ND HARMONIC 3RD HARMONIC AV = 2 VS = 5V VO = 2VP-P RL = 100 DISTORTION (dB) -30 -40 -50 -60 -70 -80 -90
DISTORTION (dB)
DISTORTION (dB)
1M FREQUENCY (Hz)
10
UW
181567 F03
181567 G23
Gain Bandwidth Product vs Programming Resistor
VS = 5V TA = 25C RL = 500
1800
Slew Rate vs Input Step
TA =25C AV = -1 V = 5V 1500 RS = R = R = 500 F G L 1200
200
SR +
SR -
900
50
600
0 10 100 1k 10k RSET PROGRAMING RESISTOR () 40k
300 0 1 2 4 3 5 6 INPUT STEP (VP-P) 7 8
181567 F02
181567 G24
Slew Rate vs Temperature
2400 2000 1600 1200 800 400 AV = -1 RF = RG = RL = 500 (NOTE 5) SR - VS = 2.5V SR+
Differential Gain and Phase vs Supply Voltage
TA = 25C DIFFERENTIAL GAIN RL = 150 0.10 0.08
DIFFERENTIAL GAIN (%)
0.06 0.12 0.10 0.08 0.06 0.04 0.02 0 DIFFERENTIAL PHASE RL = 150 0.04 0.02 0
SR + VS = 2.5V
0 -50 -25
50 25 75 0 TEMPERATURE (C)
100
125
4
8 6 10 TOTAL SUPPLY VOLTAGE (V)
12
181567 G26
181567 G25
Distortion vs Frequency, AV = -1
AV = -1 VS = 5V VO = 2VP-P RL = 100 -30 -40 -50 -60 -70 -80 -90
Distortion vs Frequency, AV = 1
AV = 1 VS = 5V VO = 2VP-P RL = 100
2ND HARMONIC 3RD HARMONIC
2ND HARMONIC 3RD HARMONIC
10M
181567 G28
-100 100k
1M FREQUENCY (Hz)
10M
181567 G29
-100 100k
1M FREQUENCY (Hz)
10M
181567 G30
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LT1815 LT1816/LT1817 TYPICAL PERFOR A CE CHARACTERISTICS
Small-Signal Transient, AV = - 1 Small-Signal Transient, AV = 1
Large-Signal Transient, AV = - 1, VS = 5V
UW
181567 G31
181567 G32
Large-Signal Transient, AV = 1, VS = 5V
181567 G33
181567 G34
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11
LT1815 LT1816/LT1817
APPLICATIO S I FOR ATIO
Layout and Passive Components
As with all high speed amplifiers, the LT1815/LT1816/ LT1817 require some attention to board layout. A ground plane is recommended and trace lengths should be minimized, especially on the negative input lead. Low ESL/ESR bypass capacitors should be placed directly at the positive and negative supply (0.01F ceramics are recommended). For high drive current applications, additional 1F to 10F tantalums should be added. The parallel combination of the feedback resistor and gain setting resistor on the inverting input combine with the input capacitance to form a pole that can cause peaking or even oscillations. If feedback resistors greater than 1k are used, a parallel capacitor of value: CF > RG * CIN/RF should be used to cancel the input pole and optimize dynamic performance. For applications where the DC noise gain is 1 and a large feedback resistor is used, CF should be greater than or equal to CIN. An example would be an I-to-V converter. Input Considerations The inputs of the LT1815/LT1816/LT1817 amplifiers are connected to the base of an NPN and PNP bipolar transistor in parallel. The base currents are of opposite polarity and provide first-order bias current cancellation. Due to variation in the matching of NPN and PNP beta, the polarity of the input bias current can be positive or negative. The offset current, however, does not depend on beta matching and is tightly controlled. Therefore, the use of balanced source resistance at each input is recommended for applications where DC accuracy must be maximized. For example, with a 100 source resistance at each input, the 800nA maximum offset current results in only 80V of extra offset, while without balance the 8A maximum input bias current could result in a 0.8mV offset contribution. The inputs can withstand differential input voltages of up to 6V without damage and without needing clamping or series resistance for protection. This differential input voltage generates a large internal current (up to 80mA),
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which results in the high slew rate. In normal transient closed-loop operation, this does not increase power dissipation significantly because of the low duty cycle of the transient inputs. Sustained differential inputs, however, will result in excessive power dissipation and therefore this device should not be used as a comparator. Capacitive Loading The LT1815/LT1816/LT1817 are optimized for high bandwidth and low distortion applications. They can drive a capacitive load of 10pF in a unity-gain configuration and more with higher gain. When driving a larger capacitive load, a resistor of 10 to 50 should be connected between the output and the capacitive load to avoid ringing or oscillation. The feedback should still be taken from the output so that the resistor will isolate the capacitive load to ensure stability. Slew Rate The slew rate of the LT1815/LT1816/LT1817 is proportional to the differential input voltage. Therefore, highest slew rates are seen in the lowest gain configurations. For example, a 5V output step in a gain of 10 has a 0.5V input step, whereas in unity gain there is a 5V input step. The LT1815/LT1816/ LT1817 are tested for a slew rate in a gain of - 1. Lower slew rates occur in higher gain configurations. Programmable Supply Current (LT1815/LT1816A) In order to operate the LT1815S6 or LT1816A at full speed (and full supply current), connect the ISET pin to the negative supply through a resistance of 75 or less. To adjust or program the supply current and speed of the LT1815S6 or LT1816A, connect an external resistor (RSET) between the ISET pin and the negative supply as shown in Figure 1. The amplifiers are fully functional with 0 RSET 40k. Figures 2 and 3 show how the gain bandwidth and supply current vary with the value of the programming resistor RSET. In addition, the Electrical Characteristics section of the data sheet specifies maximum supply current and offset voltage, as well as minimum gain bandwidth and output current at the maximum R SET value of 40k.
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LT1815 LT1816/LT1817
APPLICATIO S I FOR ATIO
5V
-
LT1815S6
V
+
+
ISET RSET
V-
181567 F01
-5V
Figure 1. Programming Resistor Between ISET and V -
250
VS = 5V TA = 25C RL = 500
200
GAIN BANDWIDTH (MHz)
150 RL = 100 100
50
0 10 100 1k 10k RSET PROGRAMING RESISTOR () 40k
181567 F02
Figure 2. Gain Bandwidth Product vs RSET Programming Resistor
7 6
SUPPLY CURRENT (mA)
VS = 5V TA = 25C PER AMPLIFIER
5 4 3 2 1 0 10 100 1k 10k RSET PROGRAMMING RESISTOR () 40k
181567 F03
Figure 3. Supply Current vs RSET Programming Resistor
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Power Dissipation The LT1815/LT1816/LT1817 combine high speed and large output drive in small packages. It is possible to exceed the maximum junction temperature specification (150C) under certain conditions. Maximum junction temperature (TJ) is calculated from the ambient temperature (TA), power dissipation per amplifier (PD) and number of amplifiers (n) as follows: TJ = TA + (n * PD * JA) Power dissipation is composed of two parts. The first is due to the quiescent supply current and the second is due to on-chip dissipation caused by the load current. The worstcase load induced power occurs when the output voltage is at 1/2 of either supply voltage (or the maximum swing if less than 1/2 the supply voltage). Therefore PDMAX is: PDMAX = (V+ - V -) * (ISMAX) + (V+/2)2/RL or PDMAX = (V+ - V -) * (ISMAX) + (V+ - VOMAX) * (VOMAX/RL) Example: LT1816IS8 at 85C, VS = 5V, RL=100 PDMAX = (10V) * (11.5mA) + (2.5V)2/100 = 178mW TJMAX = 85C + (2 * 178mW) * (150C/W) = 138C Circuit Operation The LT1815/LT1816/LT1817 circuit topology is a true voltage feedback amplifier that has the slewing behavior of a current feedback amplifier. The operation of the circuit can be understood by referring to the Simplified Schematic. Complementary NPN and PNP emitter followers buffer the inputs and drive an internal resistor. The input voltage appears across the resistor, generating current that is mirrored into the high impedance node. Complementary followers form an output stage that buffers the gain node from the load. The input resistor, input stage transconductance and the capacitor on the high impedance node determine the bandwidth. The slew rate is determined by the current available to charge the gain node capacitance. This current is the differential input voltage divided by R1, so the slew rate is proportional to the input step. Highest slew rates are therefore seen in the lowest gain configurations.
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13
LT1815 LT1816/LT1817
SI PLIFIED SCHE ATIC
V+
BIAS CONTROL R1 -IN C +IN OUT
ISET V-
181567 SS
LT1815S6/LT1816AMS ONLY
TYPICAL APPLICATIO S
Two Op Amp Instrumentation Amplifier
R5 220 R1 10k R2 1k R4 10k
VIN
R4 1 R2 R3 R2 + R3 GAIN = 1 + + + R5 R3 2 R1 R4 TRIM R5 FOR GAIN TRIM R1 FOR COMMON MODE REJECTION BW = 2MHz
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W
W
(one amplifier)
-
1/2 LT1816
R3 1k
-
1/2 LT1816 VOUT
- +
+
+
(
) = 102

181567 TA03
181567fa
LT1815 LT1816/LT1817
TYPICAL APPLICATIO S
Photodiode Transimpedance Amplifier
1pF 1pF
PHOTODIODE SIEMENS/ INFINEON SFH213
VIN 220pF
1/2 LT1816
470pF
+
-
+
-
232
U
4.75k 5V
-
LT1815
+
- 5V - 5V 4.75k 0.01F
OUTPUT OFFSET 1mV TYPICAL BANDWIDTH = 30MHz 10% TO 90% RISE TIME = 22ns OUTPUT NOISE (20MHz BW) = 300VP-P
181567 TA04
4MHz, 4th Order Butterworth Filter
232 47pF
274
22pF 665
274
562
1/2 LT1816
VOUT
181567 TA05
181567fa
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LT1815 LT1816/LT1817
PACKAGE DESCRIPTIO
0.62 MAX
3.85 MAX 2.62 REF
RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR
0.20 BSC 0.90 - 1.45 DATUM `A'
0.35 - 0.55 REF 0.09 - 0.20 NOTE: (NOTE 3) 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ)
0.62 MAX
3.85 MAX 2.62 REF
RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR
0.20 BSC 0.90 - 1.45 DATUM `A'
0.35 - 0.55 REF 0.09 - 0.20 NOTE: (NOTE 3) 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ)
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S5 Package 5-Lead Plastic SOT-23
(Reference LTC DWG # 05-08-1633) (Reference LTC DWG # 05-08-1635)
0.95 REF 2.80 - 3.10 (NOTE 4) 1.22 REF 1.4 MIN 2.60 - 3.00 1.50 - 1.75 (NOTE 4) PIN ONE 0.25 - 0.50 TYP 5 PLCS NOTE 3 0.95 BSC 0.90 - 1.30 0.00 - 0.15 1.90 BSC
S5 SOT-23 0502
ATTENTION: ORIGINAL SOT23-5L PACKAGE. MOST SOT23-5L PRODUCTS CONVERTED TO THIN SOT23 PACKAGE, DRAWING # 05-08-1635 AFTER APPROXIMATELY APRIL 2001 SHIP DATE
S6 Package 6-Lead Plastic SOT-23
(Reference LTC DWG # 05-08-1634) (Reference LTC DWG # 05-08-1636)
0.95 REF 2.80 - 3.10 (NOTE 4)
1.22 REF
1.4 MIN
2.60 - 3.00 1.50 - 1.75 (NOTE 4) PIN ONE ID
0.95 BSC 0.90 - 1.30
0.25 - 0.50 TYP 6 PLCS NOTE 3
1.90 BSC
0.09 - 0.15 NOTE 3
S6 SOT-23 0502
ATTENTION: ORIGINAL SOT23-6L PACKAGE. MOST SOT23-6L PRODUCTS CONVERTED TO THIN SOT23 PACKAGE, DRAWING # 05-08-1636 AFTER APPROXIMATELY APRIL 2001 SHIP DATE
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LT1815 LT1816/LT1817
PACKAGE DESCRIPTIO
3.5 0.05 1.65 0.05 2.15 0.05 (2 SIDES) PACKAGE OUTLINE 0.28 0.05 0.50 BSC 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
5.23 (.206) MIN
0.42 0.04 (.0165 .0015) TYP
RECOMMENDED SOLDER PAD LAYOUT DETAIL "A" 0 - 6 TYP 4.90 0.15 (1.93 .006) 3.00 0.102 (.118 .004) NOTE 4
GAUGE PLANE 0.53 0.015 (.021 .006) DETAIL "A" 0.18 (.077) SEATING PLANE 0.22 - 0.38 (.009 - .015) TYP 0.13 0.076 (.005 .003)
MSOP (MS8) 0802
NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
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DD Package 8-Lead Plastic DFN (3mm x 3mm)
(Reference LTC DWG # 05-08-1698)
R = 0.115 TYP 5 0.675 0.05 0.38 0.10 8 3.00 0.10 (4 SIDES) PIN 1 TOP MARK
(DD8) DFN 0203
1.65 0.10 (2 SIDES)
0.200 REF
0.75 0.05
4 0.28 0.05 2.38 0.10 (2 SIDES)
1 0.50 BSC
0.00 - 0.05
BOTTOM VIEW--EXPOSED PAD NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2. ALL DIMENSIONS ARE IN MILLIMETERS 3. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 4. EXPOSED PAD SHALL BE SOLDER PLATED
MS8 Package 8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
0.889 0.127 (.035 .005)
3.2 - 3.45 (.126 - .136)
0.65 (.0256) BSC
3.00 0.102 (.118 .004) (NOTE 3)
8
7 65
0.52 (.206) REF
0.254 (.010)
1 1.10 (.043) MAX
23
4 0.86 (.034) REF
0.65 (.0256) BSC
181567fa
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LT1815 LT1816/LT1817
PACKAGE DESCRIPTIO
5.23 (.206) MIN
0.50 0.305 0.038 (.0197) (.0120 .0015) BSC TYP RECOMMENDED SOLDER PAD LAYOUT
GAUGE PLANE 12345 0.53 0.01 (.021 .006) DETAIL "A" 0.18 (.007) SEATING PLANE 0.17 - 0.27 (.007 - .011) TYP 0.13 0.076 (.005 .003)
MSOP (MS) 0802
NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
.050 BSC 8 N N .245 MIN .160 .005 .228 - .244 (5.791 - 6.197) 1 .030 .005 TYP 2 3 N/2
RECOMMENDED SOLDER PAD LAYOUT
.010 - .020 x 45 (0.254 - 0.508) .008 - .010 (0.203 - 0.254) 0- 8 TYP
NOTE: 1. DIMENSIONS IN
INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
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MS10 Package 10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661)
0.889 0.127 (.035 .005) 3.2 - 3.45 (.126 - .136) 3.00 0.102 (.118 .004) (NOTE 3) 10 9 8 7 6 0.497 0.076 (.0196 .003) REF 0.254 (.010) DETAIL "A" 0 - 6 TYP 4.90 0.15 (1.93 .006) 3.00 0.102 (.118 .004) NOTE 4 1.10 (.043) MAX 0.86 (.034) REF 0.50 (.0197) BSC
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 - .197 (4.801 - 5.004) NOTE 3 7 6 5
.045 .005
.150 - .157 (3.810 - 3.988) NOTE 3 N/2
1
2
3
4
.053 - .069 (1.346 - 1.752)
.004 - .010 (0.101 - 0.254)
.016 - .050 (0.406 - 1.270)
.014 - .019 (0.355 - 0.483) TYP
.050 (1.270) BSC
SO8 0502
181567fa
LT1815 LT1816/LT1817
PACKAGE DESCRIPTIO
S Package 14-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.045 .005 .050 BSC N 14 13 .337 - .344 (8.560 - 8.738) NOTE 3 12 11 10 9 8
.245 MIN
1 .030 .005 TYP
2
3
RECOMMENDED SOLDER PAD LAYOUT 1 .010 - .020 x 45 (0.254 - 0.508) 2 3 4 5 6 7
.008 - .010 (0.203 - 0.254)
.016 - .050 (0.406 - 1.270) NOTE: 1. DIMENSIONS IN
INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
.254 MIN
.0165 .0015
RECOMMENDED SOLDER PAD LAYOUT 1 .015 .004 x 45 (0.38 0.10) .007 - .0098 (0.178 - 0.249) .016 - .050 (0.406 - 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 3. DRAWING NOT TO SCALE *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0 - 8 TYP .053 - .068 (1.351 - 1.727) 23 4 56 7 8 .004 - .0098 (0.102 - 0.249)
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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N .160 .005 .228 - .244 (5.791 - 6.197) N/2 N/2 .150 - .157 (3.810 - 3.988) NOTE 3 .053 - .069 (1.346 - 1.752) 0 - 8 TYP .004 - .010 (0.101 - 0.254) .014 - .019 (0.355 - 0.483) TYP .050 (1.270) BSC
S14 0502
GN Package 16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.045 .005 .189 - .196* (4.801 - 4.978) 16 15 14 13 12 11 10 9 .009 (0.229) REF
.150 - .165 .229 - .244 (5.817 - 6.198) .150 - .157** (3.810 - 3.988)
.0250 TYP
.008 - .012 (0.203 - 0.305)
.0250 (0.635) BSC
GN16 (SSOP) 0502
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LT1815 LT1816/LT1817
TYPICAL APPLICATIO S
Bandpass Filter with Independently Settable Gain, Q and fC
R1
0
VIN
1/4 LT1817
1/4 LT1817
GAIN = R1 RG Q = R1 RQ fC = 1 2RFC R
C
1/4 LT1817
Differential DSL Receiver
5V V+ + DRIVER
- DRIVER
PHONE LINE
RELATED PARTS
PART NUMBER LT1363/LT1364/LT1365 LT1395/LT1396/LT1397 LT1806/LT1807 LT1809/LT1810 LT1812/LT1813/LT1814 DESCRIPTION Single/Dual/Quad 70MHz, 1V/ns, C-Load Op Amp Single/Dual/Quad 400MHz Current Feedback Amplifier Single/Dual 325MHz, 140V/s Rail-to-Rail I/O Op Amp Single/Dual 180MHz, 350V/s Rail-to-Rail I/O Op Amp Single/Dual/Quad 3mA, 100MHz, 750V/s Op Amp
TM
C-Load is a trademark of Linear Technology Corporation.
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Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507
q
www.linear.com
+
-
-
+
+
-
+
-
RG
RQ R
C
RF
1/4 LT1817
BANDPASS OUT
RF
OUTPUT MAGNITUDE (6dB/DIV)
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455kHz Filter Frequency Response
R = 499 R1 = 499 RF = 511 RQ = 49.9 RG = 499 C = 680pF fC = 455kHz Q = 10 GAIN = 1 VS = 5V VIN = 5VP-P DISTORTION: 2nd < -76dB 3rd < -90dB ACROSS FREQ RANGE NOISE: 60V OVER 1MHz BANDWIDTH
R
100k 1M FREQUENCY (Hz)
10M
181567 TA06b
181567 TA06a
+
1/2 LT1816
-
DIFFERENTIAL RECEIVE SIGNAL
-
1/2 LT1816
+
V- -5V
181567 TA07
COMMENTS Wide Supply Range: 2.5V to 15V 4.6mA Supply Current, 800V/s, 80mA Output Current Low Noise: 3.5nV/Hz Low Distortion: 90dBc at 5MHz Low Power: 3.6mA Max at 5V
LT/TP 0303 1K REV A * PRINTED IN USA
(c) LINEAR TECHNOLOGY CORPORATION 2001

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