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LTC2054/LTC2055 Single/Dual Micropower Zero-Drift Operational Amplifiers DESCRIPTIO
The LTC(R)2054/LTC2055 are low power, low noise single/ dual zero-drift operational amplifiers available in the SOT-23 (ThinSOTTM) and MS8 packages. For space limited applications, the LTC2055 is also available in a 3mm x 3mm x 0.8mm dual fine pitch leadless package (DFN). They operate from a single 2.7V minimum supply and support 5V applications. The current consumption is typically 150A for the LTC2054 and 130A/amp for the LTC2055. The LTC2054/LTC2055, despite their miniature size, feature uncompromising DC performance. The typical input offset voltage and offset drift are 0.5V and 25nV/C. The almost zero DC offset and drift are supported with a power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of more than 130dB. The input common mode voltage ranges from the negative supply up to typically 0.5V from the positive supply. The open-loop gain is typically 140dB. The LTC2054/LTC2055 also feature a 1.6VP-P DC to 10Hz noise and a 500kHz gain-bandwidth product.
, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation
FEATURES

Supply Current 150A (Max per Amplifier) Guaranteed Over Temperature Offset Voltage 3V (Max) Offset Voltage Drift 30nV/C (Max) Common Mode Input Range from V- to V+ -0.5V Output Swings Rail-to-Rail Voltage Gain: 140dB (Typ) PSRR and CMRR: 130dB (Typ) Input Bias Current: 1pA (Typ, 25C) Noise: 1.6VP-P (0.01Hz to 10Hz Typ) Supply Operation: 2.7V to 6V (LTC2054/LTC2055) 2.7V to 5.5V (LTC2054HV/LTC2055HV) Low Profile (1mm) SOT-23, MS8 and 3mm x 3mm x 0.8mm DFN Packages
APPLICATIO S

Thermocouple Amplifiers Electronic Scales Medical Instrumentation Strain Gauge Amplifiers High Resolution Data Acquisition DC Accurate RC Active Filters Low Side Current Sense Battery-Powered Systems
TYPICAL APPLICATIO
-48V Low Side Precision Current Sense
SUPPLY CURRENT (A)
Q1 ZETEX ZVN3320F 100 1% 39k 0.1F 5V 10k 1%
-
LTC2054
0.01F
-
LTC2054 VOUT = 100VSENSE
+
0.1F
+
BZX84C5V1 VZ = 5.1 -48V SUPPLY 100 0.003 1% 3W
-
ISENSE, VSENSE
+
-48V LOAD
20545 TA01
U
U
U
Supply Current (per Amplifier)
250 225 200 175 150 125 100 75 50 25 0 -40 -15 5 25 45 70 85 125 LTC2055 LTC2054
TEMPERATURE (C)
20545 TA01b
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LTC2054/LTC2055
ABSOLUTE
AXI U
RATI GS
Total Supply Voltage (V + to V -) LTC2054/LTC2055 .................................................. 7V LTC2054HV/LTC2055HV ....................................... 12V Input Voltage ........................ (V + + 0.3V) to (V - - 0.3V) Input Current ...................................................... 10mA Output Short-Circuit Duration ......................... Indefinite
PACKAGE/ORDER I FOR ATIO
TOP VIEW OUT 1 V- 2 +IN 3 4 -IN 5 V+
OUT A -IN A +IN A V-
S5 PACKAGE 5-LEAD PLASTIC SOT-23
TJMAX = 150C, JA = 250C/W
DD PACKAGE 8-LEAD (3mm x 3mm) PLASTIC DFN UNDERSIDE METAL INTERNALLY CONNECTED TO V - (PCB CONNECTION OPTIONAL)
TJMAX = 125C, JA = 160C/W, NOTE 5
ORDER PART NUMBER* LTC2054CS5 LTC2054HVCS5 LTC2054IS5 LTC2054HVIS5 LTC2054HS5 LTC2054HVHS5
S5 PART MARKING LTAGB LTAGD LTAGB LTAGD LTAGB LTAGD
ORDER PART NUMBER* LTC2055CDD LTC2055HVCDD LTC2055IDD LTC2055HVIDD LTC2055HDD LTC2055HVHDD
*The temperature grade (C, I or H) is indicated on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
(LTC2054/LTC2055, LTC2054HV/LTC2055HV) The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 3V, 5V unless otherwise noted. (Note 3)
LTC2054C/LTC2055C LTC2054I/LTC2055I MIN TYP MAX 140 175 150 175 130 150 135 150 0.5 3 0.02 0.03 50 1 150 1 150 LTC2054H/LTC2055H MIN TYP MAX UNITS 140 180 A 150 180 A 130 155 A 135 155 A 0.5 3 V 0.02 0.05 V/C 50 nV/mo 1 pA 3000 pA 1 pA 3000 pA
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SYMBOL IS IS VOS VOS/T IB
PARAMETER Supply Current (LTC2054) Supply Current Per Amplifier (LTC2055) Input Offset Voltage Average Input Offset Drift Long-Term Offset Drift Input Bias Current (Note 4)
CONDITIONS No Load, VS = 3V No Load, VS = 5V No Load, VS = 3V No Load, VS = 5V (Note 2) (Note 2) VS = 3V VS = 3V VS = 5V VS = 5V
2
U
U
W
WW U
W
(Note 1)
Operating Temperature Range ............. - 40C to 125C Specified Temperature Range (Note 3) - 40C to 125C Storage Temperature Range ................ - 65C to 150C DD Package ...................................... - 65C to 125C Lead Temperature (Soldering, 10 sec)................. 300C
TOP VIEW 1 2 3 4 8 7 6 5 V+ OUT B -IN B +IN B
OUT A -IN A +IN A V- 1 2 3 4
TOP VIEW 8 7 6 5 V+ OUT B -IN B +IN B
MS8 PACKAGE 8-LEAD PLASTIC MSOP
TJMAX = 150C, JA = 200C/W
DD PART MARKING LBCW LBCX LBCW LBCX LBCW LBCX
ORDER PART NUMBER* LTC2055CMS8 LTC2055HVCMS8 LTC2055IMS8 LTC2055HVIMS8 LTC2055HMS8 LTC2055HVHMS8
MS8 PART MARKING LTBCR LTBCT LTBCR LTBCT LTBCR LTBCT

LTC2054/LTC2055
ELECTRICAL CHARACTERISTICS
(LTC2054/LTC2055, LTC2054HV/LTC2055HV) The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 3V, 5V unless otherwise noted. (Note 3)
LTC2054C/LTC2055C LTC2054I/LTC2055I MIN TYP MAX 2 300 2 300 0.6 1.6 115 130 110 120 130 115 120 130 115 120 135 115 125 140 120 2.87 2.89 2.85 4.80 4.83 4.75 2.98 2.99 2.975 4.985 4.99 4.980 2 8 10 2 8 10 2 8 10 2 8 10 0.5 500 1 LTC2054H/LTC2055H MIN TYP MAX 2 700 2 700 0.6 1.6 115 130 110 120 130 115 120 130 115 120 135 115 125 140 120 2.87 2.89 2.84 4.80 4.83 4.70 2.98 2.99 2.97 4.985 4.99 4.970 3 8 10 3 8 10 3 8 10 3 8 10 0.5 500 1
SYMBOL IOS
PARAMETER Input Offset Current (Note 4)
en CMRR
Input Noise Voltage Common Mode Rejection Ratio
PSRR AVOL
Power Supply Rejection Ratio Large-Signal Voltage Gain
CONDITIONS VS = 3V VS = 3V VS = 5V VS = 5V RS = 100, DC to 1Hz RS = 100, DC to 10Hz VCM = GND to V + - 0.7V VS = 3V VCM = GND to V + - 0.7V VS = 5V VS = 2.7V to 6V RL = 100k, VS = 3V, VOUT = VS/2 RL = 100k, VS = 5V, VOUT = VS/2

VOUT
Output Voltage Swing High
VOUT
Output Voltage Swing Low
RL = 5k to GND, VS = 3V RL = 5k to GND, VS = 3V RL = 5k to GND, VS = 5V RL = 5k to GND, VS = 5V RL = 100k to GND, VS = 3V RL = 100k to GND, VS = 3V RL = 100k to GND, VS = 5V RL = 100k to GND, VS = 5V RL = 5k to GND, VS = 3V RL = 5k to GND, VS = 3V RL = 5k to GND, VS = 5V RL = 5k to GND, VS = 5V RL = 100k to GND, VS = 3V RL = 100k to GND, VS = 3V RL = 100k to GND, VS = 5V RL = 100k to GND, VS = 5V
SR GBW fS
Slew Rate Gain Bandwidth Product Internal Sampling Frequency
UNITS pA pA pA pA VP-P VP-P dB dB dB dB dB dB dB dB dB dB V V V V V V V V mV mV mV mV mV mV mV mV V/s kHz kHz
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LTC2054/LTC2055
ELECTRICAL CHARACTERISTICS
(LTC2054HV/LTC2055HV) The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 5V unless otherwise noted. (Note 3)
LTC2054HVC/LTC2055HVC LTC2054HVI/LTC2055HVI MIN TYP MAX 175 210 150 180 0.5 5 0.025 0.03 50 3 150 6 300 0.6 1.6 120 130 115 120 130 115 125 140 120 4.78 4.82 4.75 4.98 4.99 4.975 0.5 500 1 LTC2054HVH/LTC2055HVH MIN TYP MAX UNITS 175 215 A 150 185 A 0.5 5 V 0.025 0.05 V/C 50 nV/mo 3 pA 3000 pA 6 pA 700 pA 0.6 VP-P 1.6 VP-P 120 130 dB 115 dB 120 130 dB 115 dB 125 140 dB 120 dB 4.78 4.82 V 4.70 V 4.98 4.99 V 4.97 V 0.5 V/s 500 kHz 1 kHz
SYMBOL IS IS VOS VOS/T IB IOS en CMRR PSRR AVOL VOUT
PARAMETER Supply Current Supply Current (Per Amplifier) Input Offset Voltage Average Input Offset Drift Long-Term Offset Drift Input Bias Current (Note 4) Input Offset Current (Note 4)
CONDITIONS No Load (LTC2054) No Load (LTC2055) (Note 2) (Note 2)

Input Noise Voltage Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing
RS = 100, DC to 1Hz RS = 100, DC to 10Hz VCM = GND to V + - 0.9 VS = 2.7V to 11V RL = 100k, VOUT = GND RL = 5k to GND RL = 5k to GND RL = 100k to GND RL = 100k to GND

SR GBW fS
Slew Rate Gain Bandwidth Product Internal Sampling Frequency
Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: These parameters are guaranteed by design. Thermocouple effects preclude measurements of these voltage levels during automated testing. Note 3: All versions of the LTC2054/LTC2055 are designed, characterized and expected to meet the extended temperature limits of - 40C and 125C. The LTC2054C/LTC2055C/LTC2054HVC/LTC2055HVC are guaranteed to meet the temperature limits of 0C and 70C. The LTC2054I/ LTC2055I/LTC2054HVI/LTC2055HVI are guaranteed to meet temperature
limits of - 40C and 85C. The LTC2054H/LTC2055H and LTC2054HVH/ LTC2055HVH are guaranteed to meet the temperature limits of - 40C and 125C. Note 4: Limit is determined by high speed automated test capability. See Typical Chacteristic curves for actual typical performance. For tighter specifications, please consult Linear Technology Marketing. Note 5: The JA specified for the DD package is with minimal PCB heat spreading metal. Using expanded metal area on all layers of a board reduces this value.
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LTC2054/LTC2055 TYPICAL PERFOR A CE CHARACTERISTICS
Common Mode Rejection Ratio vs Frequency
140 120 100
CMRR (dB)
CMRR (dB)
VS = 3V OR 5V VCM = 0.5VP-P
80 60 40 20 0 1 10 100 1k FREQUENCY (Hz) 10k 100k
20545 G01
80 VS = 3V 60 40 20 0 0 1 2 VCM (V) 3
PSRR (dB)
Output Voltage Swing vs Load Resistance
5 4 3 VS = 5V VS = 2.5V
VS = 2.5V VS = 5V VS = 1.5V
SHORT-CIRCUIT OUTPUT CURRENT, IOUT (mA)
OUTPUT SWING (V)
2 1 0 VS = 1.5V VS = 1.5V
OUTPUT SWING (V)
-1 -2 -3 -4 -5 RL TO GND 0
VS = 5V 6
20545 G04
2 4 LOAD RESISTANCE (k)
Gain/Phase vs Frequency
120 100 80 PHASE -60 VS = 2.5V VIN = 0.5VP-P -80 RL = 10k
GAIN (dB)
60 GAIN 40 20 0
-120 -140 -160 -180 CL = 30pF CL = 50pF CL = 100pF 100 1k 10k 100k FREQUENCY (Hz) 1M
BIAS CURRENT (pA)
BIAS CURRENT (pA)
-20 -40 10
UW
VS = 2.5V
20545 G07
DC CMRR vs Common Mode Input Range
140 120 100 VS = 5V
140 120 100 80 60 40 20
PSRR vs Frequency
VS = 2.5V
-PSRR
+PSRR 0 -20 -40
TA = 25C 4 5
20545 G02
10
100
1k 10k 100k FREQUENCY (Hz)
1M
20545 G03
Output Swing vs Load Current
V+ V + - 0.5 V+ - 1.0
6 4 2 0 -2 -4 -6 -8 -10
Short-Circuit Output Current vs Supply Voltage
ISINK VOUT = V +
V + - 1.5
V - + 1.5 V - + 1.0 VS = 2.5V VS = 5V
V - + 0.5 VS = 1.5V V- 1 2 4 5 3 0 SOURCING OR SINKING LOAD CURRENT (mA)
20545 G06
ISOURCE VOUT = V -
3
7 8 9 10 11 4 5 6 TOTAL SUPPLY VOLTAGE, V + TO V - (V)
20545 G14
Input Bias Current vs Temperature
10000
10000
Input Bias Current vs Input Common Mode Voltage
VSUPPLY = 2.5V TA = 125C
-100
1000
1000
PHASE (DEG)
100
100 TA = 85C 10 TA = 70C TA = 25C TA = -40C
10 VS = 10V VS = 5V 1
1
-200 -220 10M
VS = 3V 0.1 -40 -15 70 25 45 5 TEMPERATURE (C) 85
0.1
125
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 COMMON MODE VOLTAGE (V)
20545 G09
20545 G08
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LTC2054/LTC2055 TYPICAL PERFOR A CE CHARACTERISTICS
Transient Response Output Overload Recovery
INPUT (V)
AV = -100 RL = 100k VS = 2.5V 0.2 0
1
OUTPUT (V)
OUTPUT (V)
0
INPUT (V)
-1
0 -0.2 2ms/DIV
20545 G11
OUTPUT (V)
-2.5 AV = -100 RL = 100k VS = 2.5V
AV = 1 10s/DIV RL = 100k CL = 50pF VS = 2.5V VIN = 10kHz 2VP-P
Common Mode Input Range vs Supply Voltage
11 10
COMMON MODE RANGE (V)
-40C TA = 125C
9 8 7 6 5 4 3 2 1 0 0 1 2 345678 SUPPLY VOLTAGE (V) 9 10 11
20545 G13
SUPPLY CURRENT (A)
SUPPLY CURRENT (A)
INPUT REFFERED VOLTAGE NOISE DENSITY (nV/Hz)
LTC2055 Supply Current (Per Amplifier) vs Supply Voltage
250 225 200
SUPPLY CURRENT (A)
SUPPLY CURRENT (A)
175 150 125 100 75 50 25 0 0 1 2 34 5678 TOTAL SUPPLY VOLTAGE (V) 9 10
6
UW
20545 G10
20545 G17
Output Overload Recovery
2.5
0
0
2ms/DIV
20545 G12
LTC2054 Supply Current vs Supply Voltage
250 225 200 175 150 125 100 75 50 25 0 0 1 2 34 5678 TOTAL SUPPLY VOLTAGE (V) 9 10
LTC2054 Supply Current vs Temperature
250 225 200 175 150 125 100 75 50 25 0 -40 -15 70 25 45 5 TEMPERATURE (C) 85 125 VS = 5V VS = 5V VS = 3V
20545 G15
20545 G16
LTC2055 Supply Current (Per Amplifier) vs Temperature
250 225 200 175 150 125 100 75 50 25 0 -40 -15 70 25 45 5 TEMPERATURE (C) 85 125 VS = 5V VS = 5V VS = 3V
Noise Spectrum
100 90 80 70 60 50 40 30 20 10 AV = 100 VS = 2.5V 0 100 10 1k FREQUENCY (Hz)
10k
20545 G19
20545 G18
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LTC2054/LTC2055
TEST CIRCUITS
Electrical Characteristics Test Circuit
100k OUTPUT V+ 10
-
LTC2054/55
+
V-
RL
2054 TC01
DC-10Hz Noise Test Circuit
100k 475k
10
-
LTC2054/55
0.01F 158k 0.1F 316k 475k
-
0.01F LT1012 TO X-Y RECORDER
+
+
FOR 1Hz NOISE BW INCREASE ALL THE CAPACITORS BY A FACTOR OF 10.
2054 TC02
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LTC2054/LTC2055
APPLICATIO S I FOR ATIO
Clock Feedthrough, Input Bias Current
The LTC2054 and LTC2055 use auto-zeroing circuitry to achieve an almost zero DC offset over temperature, common mode voltage, and power supply voltage. The frequency of the clock used for auto-zeroing is typically 1.0kHz. The term clock feedthrough is broadly used to indicate visibility of this clock frequency in the op amp output spectrum. There are typically two types of clock feedthrough in auto zeroed op amps like the LTC2054/ LTC2055. The first form of clock feedthrough is caused by the settling of the internal sampling capacitor and is input referred; that is, it is multiplied by the closed loop gain of the op amp. This form of clock feedthrough is independent of the magnitude of the input source resistance or the magnitude of the gain setting resistors. The LTC2054/ LTC2055 have a residue clock feedthrough of less then 0.2VRMS input referred at 1.0kHz.
LTC2054/LTC2055 DC to 1Hz Noise
0.4V
10 SEC
LTC2054/LTC2055 DC to 10Hz Noise
1V
1 SEC
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8
U
The second form of clock feedthrough is caused by the small amount of charge injection occurring during the sampling and holding of the op amp's input offset voltage. The current spikes are multiplied by the impedance seen at the input terminals of the op amp, appearing at the output multiplied by the closed loop gain of the op amp. To reduce this form of clock feedthrough, use smaller valued gain setting resistors and minimize the source resistance at the input. If the resistance seen at the inputs is less than 10k, this form of clock feedthrough is less than the amount of residue clock feedthrough from the first form described above. Placing a capacitor across the feedback resistor reduces either form of clock feedthrough by limiting the bandwidth of the closed loop gain. Input bias current is defined as the DC current into the input pins of the op amp. The same current spikes that
2054 G16 2054 G17
W
UU
LTC2054/LTC2055
APPLICATIO S I FOR ATIO
cause the second form of clock feedthrough described above, when averaged, dominate the DC input bias current of the op amp below 70C. At temperatures above 70C, the leakage of the ESD protection diodes on the inputs increases the input bias currents of both inputs in the positive direction, while the current caused by the charge injection stays relatively constant. At elevated temperatures (above 70C) the leakage current begins to dominate and both the negative and positive pins' input bias currents are in the positive direction (into the pins).
INPUT VIN = 2V/DIV
Extended Common Mode Range The LTC2054/LTC2055 input stage is designed to allow nearly rail-to-rail input common mode signals. In addition, signals that extend beyond the allowed input common mode range do not cause output phase inversion.
OUTPUT VOUT = 2V/DIV
TYPICAL APPLICATIO S
Simple Differential Bridge Amplifier
5V 5V 0.1F
LT1790-2.5 499k 10k BRIDGE 4 5 1 AV = 100
U
Voltage Follower with Input Exceeding the Common Mode Range
2.5V
W
U
UU
-
1k 3.75VP SINE WAVE LTC2054/55 OUTPUT 100k -2.5V
2054 TA09
+
LTC2054/LTC2055 Extended Common Mode Range
0V
0V
AV = 1 500s/DIV RL = 100k VS = 2.5V VIN = 500Hz 7.5VP-P
2054 G19
1F
- +
LTC2054HV 3 2
0.1F
499k - 5V
20545 TA02
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LTC2054/LTC2055
TYPICAL APPLICATIO S
Ground Referred Precision Current Sources
LT1634-1.25 V+ 10k 4 0 IOUT 100A (V - ) + 1.5V VOUT -1V + VOUT - 1.25V IOUT = ------ RSET 5 LTC2054 4 1 RSET
3
0 IOUT 100A 0.2V VOUT (V+) - 1.5V
Instrumentation Amplifier with 100V Common Mode Input Voltage
1k V+ 1M + VIN - 1k 1M 2 1M
OUTPUT DC OFFSET 6mV FOR 0.1% RESISTORS, CMRR = 54dB
10
U
- +
5 LTC2054 2 RSET 1.25V IOUT = ------ RSET + VOUT - LT1634-1.25 10k 1 3
+ -
2 V-
20545 TA03
- +
8 1 1k 6
3
1/2 LTC2055HV 4 V-
- +
5
1/2 LTC2055HV
7
VOUT
OUTPUT OFFSET 3mV FOR 0.1% RESISTORS, CMRR = 54dB
2054 TA04
Gain of 1001 Single Supply Instrumentation Amplifier
R2 1k V+ 2 C1 0.1F
R1 1M
R4 1M R3 1k
- +
8 1/2 LTC2055 4 1
6
-
1/2 LTC2055 7 VOUT
-VIN
3
+VIN
5
+
20545 TA05
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LTC2054/LTC2055
PACKAGE DESCRIPTIO
0.675 0.05
3.5 0.05 1.65 0.05 2.15 0.05 (2 SIDES) PIN 1 PACKAGE OUTLINE TOP MARK (NOTE 6) 0.25 0.05 0.50 BSC 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 0.200 REF
0.889 0.127 (.035 .005)
5.23 (.206) MIN
3.20 - 3.45 (.126 - .136)
0.254 (.010)
GAUGE PLANE 0.42 0.038 (.0165 .0015) TYP
0.65 (.0256) BSC
DETAIL "A" 0.18 (.007)
RECOMMENDED SOLDER PAD LAYOUT
0.62 MAX
0.95 REF
1.22 REF
3.85 MAX 2.62 REF
1.4 MIN
2.60 - 3.00
RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM `A' 0.09 - 0.20 (NOTE 3) 0.90 - 1.45
0.35 - 0.55 REF
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.
U
DD Package 8-Lead Plastic DFN (3mm x 3mm)
(Reference LTC DWG # 05-08-1698)
R = 0.115 TYP 5 0.38 0.10 8 3.00 0.10 (4 SIDES) 1.65 0.10 (2 SIDES) 0.75 0.05 4 0.25 0.05 2.38 0.10 (2 SIDES) BOTTOM VIEW--EXPOSED PAD
(DD8) DFN 1203
1 0.50 BSC
NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. 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 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON TOP AND BOTTOM OF PACKAGE
0.00 - 0.05
MS8 Package 8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
3.00 0.102 (.118 .004) (NOTE 3) 8 7 65 0.52 (.0205) REF
DETAIL "A" 0 - 6 TYP
4.90 0.152 (.193 .006)
3.00 0.102 (.118 .004) (NOTE 4)
1
23
4
0.53 0.152 (.021 .006)
1.10 (.043) MAX
0.86 (.034) REF
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
SEATING PLANE
0.22 - 0.38 (.009 - .015) TYP
0.65 (.0256) BSC
0.127 0.076 (.005 .003)
MSOP (MS8) 0603
S5 Package 5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
2.80 - 3.10 (NOTE 4)
1.50 - 1.75 (NOTE 4)
PIN ONE 0.25 - 0.50 TYP 5 PLCS NOTE 3
NOTE: 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)
0.95 BSC 0.90 - 1.30
ATTENTION: ORIGINAL SOT23-5L PACKAGE. MOST SOT23-5L PRODUCTS CONVERTED TO THIN SOT23 PACKAGE, DRAWING # 05-08-1635 AFTER APPROXIMATELY APRIL 2001 SHIP DATE
0.00 - 0.15
1.90 BSC
S5 SOT-23 0502
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LTC2054/LTC2055
TYPICAL APPLICATIO S
Low Power, Bidirectional 60V Precision Hi Side Current Sense
POSITIVE SENSE 10m 5 LTC1754-5 1N4686 3.9VZ 10F 1F 2 4 6 10F 3 1 BAT54
ON 5V OFF 0V
MPSA42
Precision Low Drift Integrator
OPEN t = tO S1 10F
1
5V VIN 1M 4
- +
5 1
LTC2054HV 3 2 -5V
RELATED PARTS
PART NUMBER LTC1049 LTC1050 LTC1150 LTC1152 LT1677 LT1884/LT1885 LTC2050 LTC2053 DESCRIPTION Low Power Zero-Drift Op Amp Precision Zero-Drift Op Amp 15V Zero-Drift Op Amp Rail-to-Rail Input and Output Zero-Drift Op Amp Low Noise Rail-to-Rail Input and Ouptput Precision Op Amp Rail-to-Rail Output Precision Op Amp Zero-Drift Op Amp Zero-Drift Instrumentation Amp COMMENTS Low Supply Current 200A Single Supply Operation 4.75V to 16V, Noise Tested and Guaranteed Dual/Quad Version of the LTC1050 High Voltage Operation 18V Single Zero-Drift Op Amp with Rail-to-Rail Input and Output and Shutdown VOS = 90V, VS = 2.7V to 44V VOS = 50V, IB = 400pA, VS = 2.7V to 40V Enhanced Output Drive Capability Dual/Quad Version of the LTC2050 in MS8/GN16 Package Rail-to-Rail Input
sn20545 20545fas LT/TP 0404 1K REV A * PRINTED IN USA
LTC1051/LTC1053 Precision Zero-Drift Op Amp
LTC2051/LTC2052 Dual/Quad Zero-Drift Op Amp
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
U
-
VSENSE
+
PRECISION BIDIRECTIONAL GAIN OF 125 5 LTC2054 4 1 0.1F 2 12.4k
100 0.1F 100
3
+ -
33 2 2N5401 POWER SUPPLY (NOTE: POSITIVE CURRENT SENSE INCLUDES CIRCUIT SUPPLY CURRENT) PRECISION BIDIRECTIONAL HIGH VOLTAGE LEVEL SHIFT AND GAIN OF 8 1 VS- 7 VS+ 8 VOUT = 2.5V +1000* VSENSE 4.7F 6 4
20545 TA06
LT1787HV
5
35.7k
2.5V REF
Ultra-Precision, Wide Dynamic Range 10Hz Bandwidth Photodiode Amplifier
100k 0.15F GAIN = 0.1V/A ~10pA RESOLUTION 50A FULL SCALE
5V 1k 4
- +
5 1 2k 0.01F
20545 TA08
t V (t) IN dt tO 10sec
ANY PHOTODIODE
LTC2054 3 2 -5V
20545 TA07
www.linear.com
(c) LINEAR TECHNOLOGY CORPORATION 2004

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