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LT1259/LT1260 Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown
FEATURES
s s s s s s s s s s s s
DESCRIPTIO
90MHz Bandwidth on 5V 0.1dB Gain Flatness > 30MHz Completely Off in Shutdown, 0A Supply Current High Slew Rate: 1600V/s Wide Supply Range: 2V(4V) to 15V(30V) 60mA Output Current Low Supply Current: 5mA/Amplifier Differential Gain: 0.016% Differential Phase: 0.075 Fast Turn-On Time: 100ns Fast Turn-Off Time: 40ns 14-Pin and 16-Pin Narrow SO Packages
The LT (R)1259 contains two independent 130MHz current feedback amplifiers, each with a shutdown pin. These amplifiers are designed for excellent linearity while driving cables and other low impedance loads. The LT1260 is a triple version especially suited to RGB video applications. These amplifiers operate on all supplies from single 5V to 15V and draw only 5mA per amplifier when active. When shut down, the LT1259/LT1260 amplifiers draw zero supply current and their outputs become high impedance. Only two LT1260s are required to make a complete 2-input RGB MUX and cable driver. These amplifiers turn on in only 100ns and turn off in 40ns, making them ideal in spread spectrum and portable equipment applications. The LT1259/LT1260 amplifiers are manufactured on Linear Technology's proprietary complementary bipolar process.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s s s s s
RGB Cable Drivers Spread Spectrum Amplifiers MUX Amplifiers Composite Video Cable Drivers Portable Equipment
TYPICAL APPLICATIO
2-Input Video MUX Cable Driver
A VIN A RG 1.6k CHANNEL SELECT EN A 75 B
Square Wave Response
+ -
1/2 LT1259 RF 1.6k 75 CABLE VOUT
VIN B RG 1.6k
+ -
EN B 75
LT1259/60 * TA01
75
1/2 LT1259 RF 1.6k
CABLE OUTPUT
RL = 150 f = 30MHz
U
LT1259/50 * TA02
U
U
1
LT1259/LT1260
ABSOLUTE
AXI U
RATI GS
Operating Temperature Range ............... - 40C to 85C Storage Temperature Range ................ - 65C to 150C Junction Temperature (Note 4) ............................ 150C Lead Temperature (Soldering, 10 sec).................. 300C
Supply Voltage ..................................................... 18V Input Current ..................................................... 15mA Output Short-Circuit Duration (Note 1) ......... Continuous Specified Temperature Range (Note 2) ....... 0C to 70C
PACKAGE/ORDER I FOR ATIO
TOP VIEW -IN A +IN A GND GND GND +IN B -IN B 1 2 3 4 5 6 7 B A 14 EN A 13 OUT A 12 V + 11 GND 10 V - 9 8 OUT B EN B
ORDER PART NUMBER LT1259CN LT1259CS LT1259IN LT1259IS
N PACKAGE S PACKAGE 14-LEAD PLASTIC DIP 14-LEAD PLASTIC SOIC
TJMAX = 150C, JA = 70C/W (N) TJMAX = 150C, JA = 110C/W (S)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
0C TA 70C, each amplifier VCM = 0V, 5V VS 15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL VOS PARAMETER Input Offset Voltage Input Offset Voltage Drift Noninverting Input Current Inverting Input Current Input Noise Voltage Density Noninverting Input Noise Current Density Inverting Input Noise Current Density Input Resistance Input Capacitance Output Capacitance Input Voltage Range CONDITIONS TA = 25C
q q
IIN+ IIN- en + in - in RIN CIN COUT VIN
TA = 25C
q
TA = 25C
q
f = 1kHz, RF = 1k, RG = 10, RS = 0 f = 1kHz f = 1kHz VIN = 13V, VS = 15V VIN = 3V, VS = 5V Enabled Disabled Disabled VS = 15V, TA = 25C VS = 5V, TA = 25C
2
U
U
W
WW
U
W
TOP VIEW -IN R +IN R GND -IN G +IN G GND +IN B -IN B 1 2 3 4 5 6 7 8 B G R 16 EN R 15 OUT R 14 V + 13 EN G 12 OUT G 11 V - 10 OUT B 9 EN B
ORDER PART NUMBER LT1260CN LT1260CS LT1260IN LT1260IS
N PACKAGE S PACKAGE 16-LEAD PLASTIC DIP 16-LEAD PLASTIC SOIC TJMAX = 150C, JA = 70C/W (N) TJMAX = 150C, JA = 100C/W (S)
MIN
TYP 2 30 0.5 20 3.6 1.3 45 17 25 2 4 4.4 13.5 3.5
MAX 12 16 3 6 90 120
q q
2 2
q q
13 12 3 2
UNITS mV mV V/C A A A A nV/Hz pA/Hz pA/Hz M M pF pF pF V V V V
LT1259/LT1260
ELECTRICAL CHARACTERISTICS
0C TA 70C, each amplifier VCM = 0V, 5V VS 15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL VOUT PARAMETER Maximum Output Voltage Swing CONDITIONS VS = 15V, RL = 1k VS = 5V, RL = 150, TA = 25C VS = 15V, VCM = 13V, TA = 25C VS = 15V, VCM = 12V VS = 5V, VCM = 3V, TA = 25C VS = 5V, VCM = 2V VS = 15V, VCM = 13V, TA = 25C VS = 15V, VCM = 12V VS = 5V, VCM = 3V, TA = 25C VS = 5V, VCM = 2V VS = 2V to 15V, EN Pins at V -, TA = 25C VS = 3V to 15V, EN Pins at V - VS = 3V to 15V, EN Pins at V -, TA = 25C VS = 3V to 15V, EN Pins at V - VS = 2V to 15V, EN Pins at V -, TA = 25C VS = 3V to 15V, EN Pins at V - VS = 15V, VOUT = 10V, RL = 1k VS = 5V, VOUT = 2V, RL = 150 VS = 15V, VOUT = 10V, RL = 1k VS = 5V, VOUT = 2V, RL = 150 RL = 0, TA = 25C VS = 15V, VOUT = 0V, TA = 25C
q q
CMRR
Common-Mode Rejection Ratio
q q q
MIN 12.0 3.0 2.5 55 55 52 52
TYP 14.0 3.7 69 63 3.5 4.5
MAX
Inverting Input Current Common-Mode Rejection
q q q
10 10 15 15
PSRR
Power Supply Rejection Ratio Noninverting Input Current Power Supply Rejection Inverting Input Current Power Supply Rejection Large-Signal Voltage Gain Transresistance, VOUT/IIN- Maximum Output Current Supply Current per Amplifier (Note 5) Disable Supply Current per Amplifier Enable Pin Current
60 60
80 15 0.1 65 75 5 5
q q q q q
AV ROL IOUT IS
57 57 120 100 30
72 69 300 200 60 5.0 4.5 3 1 60
VS = 5V, VOUT = 0V, TA = 25C VS = 15V, EN Pin Voltage = 14.5V, RL = 150 q q VS = 15V, Sink 1A From EN Pin VS = 15V, EN Pin Voltage = 0V, TA = 25C
q
q
7.5 7.9 6.7 16.7 2.7 200 300 400 150
SR tON tOFF tr, tf
tS
Slew Rate (Note 6) Turn-On Delay Time (Note 7) Turn-Off Delay Time (Note 7) Small-Signal Rise and Fall Time Propagation Delay Small-Signal Overshoot Settling Time Differential Gain (Note 8) Differential Phase (Note 8)
TA = 25C AV = 10, TA = 25C AV = 10, TA = 25C VS = 12V, RF = RG = 1.5k, RL = 150 VS = 12V, RF = RG = 1.5k, RL = 150 VS = 12V, RF = RG = 1.5k, RL = 150 0.1%, VOUT = 10V, RF = RG = 1.5k, RL = 1k VS = 12V, RF = RG = 1.5k, RL = 150 VS = 12V, RF = RG = 1.5k, RL = 150
900
1600 100 40 4.2 4.7 5 75 0.016 0.075
UNITS V V V dB dB dB dB A/V A/V A/V A/V dB dB nA/V nA/V A/V A/V dB dB k k mA mA mA mA A A A A V/s ns ns ns ns % ns % DEG
- 40C TA 85C, each amplifier VCM = 0V, 5V VS 15V, EN pins = 0V, pulse tested, unless otherwise noted.
SYMBOL VOS IIN+ IIN- RIN AV IS PARAMETER Input Offset Voltage Noninverting Input Current Inverting Input Current Input Resistance Large-Signal Gain Disable Supply Current per Amplifier Enable Pin Current CONDITIONS
q q q
MIN
TYP
MAX 18 7 130
VIN = 3V, VS = 5V VS = 15V, EN Pin Voltage = 14.5V, RL = 150 VS = 15V, EN Pin Voltage = 0V
q q q q
1 55 19 350
UNITS mV A A M dB A A
3
LT1259/LT1260
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the specified operating temperature range. Note 1: A heat sink may be required depending on the power supply voltage and how many amplifiers have their outputs short circuited. Note 2: Commercial grade parts are designed to operate over the temperature range of - 40C to 85C but are neither tested nor guaranteed beyond 0C to 70C. Industrial grade parts specified and tested over - 40C to 85C are available on special request. Consult factory. Note 3: Ground pins are not internally connected. For best performance, connect to ground. Note 4: TJ is calculated from the ambient temperature TA and the power dissipation PD according to the following formulas: LT1259CN/LT1259IN: TJ = TA + (PD * 70C/W) LT1259CS/LT1259IS: TJ = TA + (PD * 110C/W) LT1260CNLT1260IN/: TJ = TA + (PD * 70C/W) LT1260CS/LT1260IS: TJ = TA + (PD * 100C/W) Note 5: The supply current of the LT1259/LT1260 has a negative temperature coefficient. See Typical Performance Characteristics. Note 6: Slew rate is measured at 5V on a 10V output signal while operating on 15V supplies with RF = 1k, RG = 110 and RL = 1k. Note 7: Turn-on delay time is measured while operating on 5V supplies with RF = 1k, RG = 110 and RL = 150. The tON is measured from control input to appearance of 0.5V at the output, for VIN = 0.1V. Likewise, turn-off delay time is measured from control input to appearance of 0.5V on the output for VIN = 0.1V. Note 8: Differential gain and phase are measured using a Tektronix TSG120YC/NTSC signal generator and a Tektronix 1780R Video Measurement Set. The resolution of this equipment is 0.1% and 0.1. Six identical amplifier stages were cascaded giving an effective resolution of 0.016% and 0.016.
TYPICAL AC PERFOR A CE
VS (V) 12 5 12 5 AV 2 2 10 10 RL () 150 150 150 150 RF () 1.5k 1.1k 1.1k 825 RG () 1.5k 1.1k 121 90.9 SMALL SIGNAL - 3dB BW (MHz) 130 93 69 61 SMALL SIGNAL 0.1dB BW (MHz) 53 40 20 16 SMALL SIGNAL PEAKING (dB) 0.1 0 0.13 0
TYPICAL PERFOR A CE CHARACTERISTICS
12V Frequency Response, AV = 2
12 11 10 9 PHASE 0 -20 -40 -60
GAIN (dB)
GAIN (dB)
8 7 6 5 4 3 2 1 10 FREQUENCY (MHz) 100
LT1259/60 * TPC01
GAIN
VS = 12V RL = 150 RF = RG = 1.5k
4
UW
UW
12V Frequency Response, AV = 10
26 25 24 23
PHASE (DEG)
0 VS = 12V RL = 150 RF = 1.1k RG = 121 -20 -40 -60 PHASE (DEG) -80 -100 GAIN -120 -140 -160 -180 -200 1 10 FREQUENCY (MHz) 100
LT1259/60 * TPC01
PHASE
-80 -100 -120 -140 -160 -180 -200
22 21 20 19 18 17 16
LT1259/LT1260 TYPICAL PERFOR A CE CHARACTERISTICS
5V Frequency Response, AV = 2
12 11 10 9 PHASE 0 -20 -40 -60
26 25 24 23 PHASE
GAIN (dB)
7 6 5 4 3 2 1 VS = 5V RL = 150 RF = RG = 1.1k 10 FREQUENCY (MHz) 100
LT1259/60 * TPC03
-100 GAIN -120 -140 -160 -180 -200
GAIN (dB)
8
Total Harmonic Distortion vs Frequency
0.1
TOTAL HARMONIC DISTORTION (%)
VS = 12V RL = 400 RF = RG = 1.5k
DISTORTION (dBc)
VO = 6VRMS 0.01 VO = 1VRMS
-40
OUTPUT VOLTAGE (VP-P)
0.001 10 100 1k 10k FREQUENCY (Hz) 100k
Power Supply Rejection vs Frequency
80
POWER SUPPLY REJECTION (dB)
OUTPUT IMPEDANCE ()
60 NEGATIVE 50 POSITIVE 40 30 20 10 0 10k 100k 1M 10M FREQUENCY (Hz) 100M
SPOT NOISE (nV/Hz OR pA/Hz)
70
VS = 15V RL = 1OO RF = RG = 1k
LTC1259/60 * TPC08
UW
LT1259/60 * TPC05
5V Frequency Response, AV = 10
0 -20 -40 -60
PHASE (DEG)
PHASE (DEG)
-80
22 21 20 19 18 17 16 1 VS = 5V RL = 150 RF = 825 RG = 90.9 10 FREQUENCY (MHz) 100
LT1259/60 * TPC04
-80 -100 GAIN -120 -140 -160 -180 -200
2nd and 3rd Harmonic Distortion vs Frequency
-20 VS = 12V VO = 2VP-P AV = 10dB RL = 100 RF = 1.5k
25
Maximum Undistorted Output vs Frequency
VS = 15V RL = 1k RF = 2k
-30
20
15 AV = 1 AV = 2
AV = 10
-50 2ND 3RD
10
-60
5
-70 1 10 FREQUENCY (MHz) 100
LT12359/60 * TPC06
0 1 10 FREQUENCY (MHz) 100
LT12359/60 * TPC07
Spot Noise Voltage and Current vs Frequency
100 -in
100
Output Impedance vs Frequency
VS = 15V
10
RF = RG = 2k
10 en +in 1 10
1
100
1k 10k FREQUENCY (Hz)
100k
0.1 10k
100k
1M 10M FREQUENCY (Hz)
100M
LT1259/60 * TPC09
LT1259/60 * TPC10
5
LT1259/LT1260 TYPICAL PERFOR A CE CHARACTERISTICS
Output Impedance in Shutdown vs Frequency
100 VS = 15 AV = 1 RF = 1.5k
LOAD CAPACITANCE (pF) 1000
OUTPUT IMPEDANCE (k)
SUPPLY CURRENT (mA)
10
1
0.1 100k
1M 10M FREQUENCY (Hz)
LT1259/60 * TPC11
Output Saturation Voltage vs Temperature
V+
OUTPUT SATURATION VOLTAGE (V)
-0.5
COMMON-MODE RANGE (V)
-0.5 -1.0
V + = 2V TO 18V
-1.0 -1.5 -2.0
OUTPUT SHORT-CIRCUIT CURRENT (mA)
RL = 2V VS 18V
1.0 0.5 V- -50 -25
50 25 75 0 TEMPERATURE (C)
Settling Time to 10mV vs Output Step
10 8 6
OUTPUT STEP (V)
4 2 0 -2 -4 -6 -8 -10 0 100 200 300 400 500 600 700 800 SETTLING TIME (ns)
LT1259/60 * TPC17
NONINVERTING INVERTING
6
UW
100
LT1259/60 * TPC14
Maximum Capacitive Load vs Feedback Resistor
7 6 VS = 5V VS = 15V 5
Supply Current vs Supply Voltage
-55C
25C 4 125C 3 2 1 0 0 2 4 6 8 10 12 14 SUPPLY VOLTAGE (V) 16 18
100
AV = 2 RL = 150 PEAKING 5dB
100M
10
1
2
3 4 5 FEEDBACK RESISTOR (k)
6
LT1259/60 * TPC12
LT1259/60 * TPC13
Input Common-Mode Limit vs Temperature
V+ 80
Output Short-Circuit Current vs Junction Temperature
70
60
2.0 1.5 1.0 0.5 V - = -2V TO -18V
50
125
V- -50 -25
50 25 0 75 TEMPERATURE (C)
100
125
40 - 50 - 25
0
25 50 75 100 125 150 TEMPERATURE (C)
LT1259/60 * TPC15
LT1259/60 * TPC16
Small-Signal Rise Time
VS = 12V RF = 1.5k
VS = 15V AV = 2
RF = RG = 1.6k RL = 150
LT1259/60 G19
LT1259/LT1260
SI PLIFIED SCHE ATIC , each amplifier W W
V+
+IN
-IN
OUT
EN
V-
LT1259/60 * SS
APPLICATIO S I FOR ATIO
Feedback Resistor Selection
The small-signal bandwidth of the LT1259/ LT1260 are set by the external feedback resistors and the internal junction capacitors. As a result, the bandwidth is a function of the supply voltage, the value of the feedback resistor, the closed-loop gain and the load resistor. The LT1259/LT1260 have been optimized for 5V supply operation and have a - 3dB bandwidth of 90MHz. See resistor selection guide in Typical AC Performance table. Capacitance on the Inverting Input Current feedback amplifiers require resistive feedback from the output to the inverting input for stable operation. Take care to minimize the stray capacitance between the output and the inverting input. Capacitance on the inverting input to ground will cause peaking in the frequency response (and overshoot in the transient response). See the section on Demo Board Information. Capacitive Loads The LT1259/LT1260 can drive capacitive loads directly when the proper value of feedback resistor is used. The graph of Maximum Capacitive Load vs Feedback Resistor should be used to select the appropriate value. The value shown is for 5dB peaking when driving a 150 load at a gain of 2. This is a worst case condition. The amplifier is
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more stable at higher gains. Alternatively, a small resistor (10 to 20) can be put in series with the output to isolate the capacitive load from the amplifier output. This has the advantage that the amplifier bandwidth is only reduced when the capacitive load is present. The disadvantage is that the gain is a function of the load resistance. Power Supplies The LT1259/LT1260 will operate from single or split supplies from 2V (4V total) to 15V (30V total). It is not necessary to use equal value split supplies, however the offset voltage and inverting input bias current will change. The offset voltage changes about 500V per volt of supply mismatch. The inverting bias current can change as much as 5A per volt of supply mismatch though typically, the change is about 0.1A per volt. Slew Rate The slew rate of a current feedback amplifier is not independent of the amplifier gain configuration the way slew rate is in a traditional op amp. This is because both the input stage and the output stage have slew rate limitations. In the inverting mode, and for higher gains in the noninverting mode, the signal amplitude between the input pins is small and the overall slew rate is that of the output stage. For gains less than ten in the noninverting mode, the overall slew rate is limited by the input stage.
W
UU
7
LT1259/LT1260
APPLICATIO S I FOR ATIO
The input slew rate of the LT1259/LT1260 is approximately 270V/s and is set by internal currents and capacitances. The output slew rate is set by the value of the feedback resistors and internal capacitances. At a gain of 10 with at 1k feedback resistor and 15V supplies, the output slew rate is typically 1600V/s. Larger feedback resistors will reduce the slew rate as will lower supply voltages, similar to the way the bandwidth is reduced. The graph of Maximum Undistorted Output vs Frequency relates the slew rate limitations to sinusoidal input for various gains.
Large-Signal Transient Response, AV = 2
VS = 15V RF = RG = 1.6k
RL = 400
LT1259/LT1260 * AI01
Large-Signal Transient Response, AV = 10
VS = 15V RF = 1k
RG = 110 RL = 400
LT1259/LT1260 * AI02
Enable/Disable The LT1259/LT1260 amplifiers have a unique high impedance, zero supply current mode which is controlled by independent EN pins. When disabled, an amplifier output
8
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looks like a 4.4pF capacitor in parallel with a 75k resistor, excluding feedback resistor effects. These amplifiers are designed to operate with open drain logic: the EN pins have internal pullups and the amplifiers draw zero current when these pins are high. To activate an amplifier, its EN pin is pulled to ground (or at least 2V below the positive supply). The enable pin current is approximately 60A when activated. Input referred switching transients with no input signal applied are only 35mV positive and 80mV negative with RL = 100.
Output Switching Transient
EN OUTPUT VS = 5V VIN = 0V RF = RG = 1.6k RL = 100
LT1259/LT1260 * AI03
W
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The enable/disable times are very fast when driven from standard 5V logic. The amplifier enables in about 100ns (50% point to 50% point) while operating on 5V supplies. Likewise the disable time is approximately 40ns (50% point to 50% point) or 75ns to 90% of the final value. The output decay time is set by the output capacitance and load resistor.
Amplifier Enable Time, AV = 10
OUTPUT
EN
VS = 5V VIN = 0.1V
RF = 1k RG = 110
RL = 150
LT1259/LT1260 * AI04
LT1259/LT1260
APPLICATIO S I FOR ATIO
Amplifier Disable Time, AV = 10
VS = 5V VIN = 0.1V
RF = 1k RG = 110
RL = 150
LT1259/LT1260 * AI05
Differential Input Signal Swing The differential input swing is limited to about 6V by an ESD protection device connected between the inputs. In normal operation, the differential voltage between the
TYPICAL APPLICATIO S
2-Input Video MUX Cable Driver The application on the first page shows a low cost, 2input video MUX cable driver. The scope photo displays the cable output of a 30MHz square wave driving 150. In this circuit the active amplifier is loaded by RF and RG of the disabled amplifier, but in this case it only causes a 1.2% gain error. The gain error can be eliminated by
2-Input Video MUX Switching Response
EN A
VS = 5V VIN A = VIN 2 = 2VPP at 2MHz
RF = RG = 1.6k RL = 100
LT1259/LT1260 * TA03
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Amplifier Enable/Disable Time, AV = 2
EN EN OUTPUT OUTPUT VS = 5V VIN = 2VPP at 2MHz RF = RG = 1.6k RL = 100
LT1259/LT1260 * AI06
W
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input pins is small, so this clamp has no effect. In the disabled mode however, the differential swing can be the same as the input swing, and the clamp voltage will set the maximum allowable input voltage.
configuring each amplifier as a unity-gain follower. The switching time between channels is 100ns when both EN A and EN B are driven. 2-Input RGB MUX Cable Driver Demonstration Board A complete 2-input RGB MUX has been fabricated on PC Demo Board #039A. The board incorporates two LT1260s with outputs summed through 75 back termination resistors as shown in the schematic. There are several things to note about Demo Board #039A: 1. The feedback resistors of the disabled LT1260 load the enabled amplifier and cause a small (1% to 2%) gain error depending on the values of RF and RG. Configure the amplifiers as unity-gain followers to eliminate this error. 2. The feedback node has minimum trace length connecting RF and RG to minimize stray capacitance. 3. Ground plane is pulled away from RF and RG on both sides of the board to minimize stray capacitance.
EN B
9
LT1259/LT1260
TYPICAL APPLICATIO S
4. Capacitors C1 and C6 are optional and only needed to reduce overshoot when EN 1 or EN 2 are activated with a long inductive ground wire. 5. The R, G and B amplifiers have slightly different frequency responses due to different output trace routing to RF (between pins 3 and 4). All amplifiers have slightly less bandwidth in PCB #039 than when measured alone as shown in the Typical AC Performance table. 6. Part-to-part variation can change the peaking by 0.25dB.
RGB Demo Board Gain vs Frequency
4 VS = 12V RL = 150 RF = RG = 1.6k R G B -2
ALL HOSTILE CROSSTALK (dB)
2
GAIN (dB)
0
-4
-6 1 10 FREQUENCY (MHz) 100
LT1259/60 * TA04
RGB Demo Board Gain vs Frequency
4 VS = 5V RL = 150 RF = RG = 1.1k R, B
GAIN (dB)
2
0 G -2
-4
-6 1 10 FREQUENCY (MHz) 100
LT1259/60 * TA05
10
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RGB Demo Board All Hostile Crosstalk
0 VS = 12V RL = 100 RF = RG = 1.6k RS = 10 G B R
-20
-40
-60
-80
-100 1 10 FREQUENCY (MHz) 100
LT1259/60 * TA06
P-DIP PC Board #039
EN2
EN1
V+ C1 U1 R13 R14
V-
GND
R1
R1 R2 R3 R4 R5 R6
C2 C3 R15
R
G1
B1
C6 R7 R8 R9 R10 R11 R12 U2
C4 C5 R16 C7 R17 C8 R18
G
R2
B
G2
(408) 432-1900 LT1260 RGB AMPLIFIER DEMONSTRATION BOARD
B2
LT1259/60 * TA07
LT1259/LT1260
PACKAGE DESCRIPTIO
0.300 - 0.325 (7.620 - 8.255)
0.130 0.005 (3.302 0.127) 0.015 (0.380) MIN
0.009 - 0.015 (0.229 - 0.381) 0.005 (0.125) MIN 0.100 0.010 (2.540 0.254) *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) +0.025 0.325 -0.015 +0.635 8.255 -0.381
(
)
0.125 (3.175) MIN
0.300 - 0.325 (7.620 - 8.255)
0.130 0.005 (3.302 0.127) 0.015 (0.381) MIN
0.009 - 0.015 (0.229 - 0.381)
(
+0.025 0.325 -0.015 8.255 +0.635 -0.381
)
0.125 (3.175) MIN
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254)
0.053 - 0.069 (1.346 - 1.752) 0 - 8 TYP
0.016 - 0.050 0.406 - 1.270
0.014 - 0.019 (0.355 - 0.483)
*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
0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254)
0.053 - 0.069 (1.346 - 1.752) 0 - 8 TYP
0.016 - 0.050 0.406 - 1.270
0.014 - 0.019 (0.355 - 0.483)
*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
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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Dimensions in inches (millimeters) unless otherwise noted. N Package 14-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.045 - 0.065 (1.143 - 1.651) 0.770* (19.558) MAX 14 13 12 11 10 9 8
0.255 0.015* 0.065 (6.477 0.381) (1.651) TYP 0.018 0.003 (0.457 0.076) 1 2 3 4 5 6 7
N14 0695
N Package 16-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.045 - 0.065 (1.143 - 1.651) 0.770* (19.558) MAX 16 15 14 13 12 11 10 9
0.255 0.015* 0.065 (6.477 0.381) (1.651) TYP 0.005 (0.127) MIN 0.100 0.010 (2.540 0.254) 1 0.018 0.003 (0.457 0.076) 2 3 4 5 6 7 8
N16 0695
S Package 14-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.337 - 0.344* (8.560 - 8.738) 0.004 - 0.010 (0.101 - 0.254) 14 13 12 11 10 9 8
0.050 (1.270) TYP
0.228 - 0.244 (5.791 - 6.197)
0.150 - 0.157** (3.810 - 3.988)
1
2
3
4
5
6
7
S14 0695
S Package 16-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.386 - 0.394* (9.804 - 10.008) 0.004 - 0.010 (0.101 - 0.254) 16 15 14 13 12 11 10 9
0.050 (1.270) TYP
0.228 - 0.244 (5.791 - 6.197)
0.150 - 0.157** (3.810 - 3.988)
1
2
3
4
5
6
7
8
S16 0695
11
LT1259/LT1260
TYPICAL APPLICATIO U
Demonstration PC Board Schematic #039
C1* 0.01F R1 R2 EN 1 EN 2 V+ V- GND
1 R1 2 3 R3 4 5 R4 6 7 R6 8 R5
-
R
16 15 14 13 G 12 11 C2 0.1F R14 75 VOUT GREEN R13 75 VOUT RED
+
LT1260
- +
G1
B1
+
B
10 9
-
C3 0.1F R15 75 VOUT BLUE C4 4.7F
C6* 0.01F R7 R8
+ +
C5 4.7F
1 R2 2 3 R9 4 5 R10 6 7 R12 8 R11
-
R
16 15 14 13 G 12 11 C7 0.1F R16 75
+
LT1260
- +
R17 75
G2
B2
+
B
10 9
C8 0.1F
-
R18 75
LT1259/60 * TA08
*OPTIONAL
RELATED PARTS
PART NUMBER LT1203/LT1205 LT1204 LT1227 LT1252/LT1253/LT1254 DESCRIPTION 150MHz Video Multiplexers 4-Input Video MUX with Current Feedback Amplifier 140MHz Current Feedback Amplifier Low Cost Video Amplifiers COMMENTS 2:1 and Dual 2:1 MUXes with 25ns Switch Time Cascadable Enable 64:1 Multiplexing 1100V/s Slew Rate, Shutdown Mode Single, Dual and Quad Current Feedback Amplifiers
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 q (408) 432-1900 FAX: (408) 434-0507q TELEX: 499-3977 q www.linear-tech.com
125960fas, sn125960 LT/TP 1197 REV A 4K * PRINTED IN USA
(c) LINEAR TECHNOLOGY CORPORATION 1993

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