Final Electrical Specifications LTC2051 Dual Zero-Drift Operational Amplifier February 2000 U DESCRIPTIO FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ The LTC®2051 is a dual zero-drift operational amplifier available in the MS8 and SO-8 packages. It operates from a single 2.7V supply while still supporting ±5V applications. The power consumption is 750µA per op amp. Maximum Offset Voltage of 3µV Maximum Offset Voltage Drift of 30nV/°C Small Footprint, Low Profile MS8 Package Noise: 1.5µVP-P (0.1Hz to 10Hz Typ) Voltage Gain: 140dB (Typ) PSRR: 130dB (Typ) CMRR: 130dB (Typ) Supply Current: 0.75mA (Typ) per Amplifier Single Supply Operation: 2.7V to 11V Extended Common Mode Input Range Output Swings Rail-to-Rail Overload Recovery Time: 2ms (Typ) Operating Temperature Range –40°C to 85°C The LTC2051, despite its miniature size, features uncompromising DC performance. The typical input offset voltage and offset drift are 0.5µV and 10nV/°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 1V from the positive supply. The LTC2051 also has an enhanced output stage capable of driving loads as low as 1kΩ to both supply rails. The open-loop gain, loaded with 1kΩ, is in excess of 140dB. The LTC2051 also features a 1.5µVP-P DC to 10Hz noise and a 3MHz gain bandwidth product. UO APPLICATI ■ ■ ■ ■ ■ Thermocouple Amplifiers Electronic Scales Medical Instrumentation Strain Gauge Amplifiers High Resolution Data Acquisition DC Accurate RC Active Filters , LTC and LT are registered trademarks of Linear Technology Corporation. UO ■ S TYPICAL APPLICATI High Performance Low Cost Instrumentation Amplifier –VIN VS = 5V R2 100k 0.1% R1 499Ω 0.1% 3 5V 2 3 – 8 1/2 LTC2051HV 1 R1 499Ω 0.1% 1 µV R2 100k 0.1% Input Referred Noise 0.1Hz to 10Hz 6 – –1 1/2 LTC2051HV + VIN 5 + 0 4 7 AV = 201 –5V –3 0 2 2051 TA01 6 4 TIME (s) 8 10 LT2051 TA02 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. 1 LTC2051 W W W AXI U U ABSOLUTE RATI GS (Note 1) Total Supply Voltage (V + to V –) LTC2051 .................................................................. 7V LTC2051HV ........................................................... 12V Input Voltage ........................ (V + + 0.3V) to (V – – 0.3V) Output Short-Circuit Duration ......................... Indefinite Operating Temperature Range ............... – 40°C to 85°C Specified Temperature Range (Note 3) .. – 40°C to 85°C Storage Temperature Range ................ – 65°C to 150°C Lead Temperature (Soldering, 10 sec)................. 300°C U W U PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW OUT A –IN A +IN A V– 1 2 3 4 8 7 6 5 V+ OUT B –IN B +IN B MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 125°C, θJA = 250°C/W LTC2051CMS8 LTC2051IMS8 LTC2051HVCMS8 LTC2051HVIMS8 MS8 PART MARKING LTMN LTMP LTPJ LTPK ORDER PART NUMBER LTC2051CS8 LTC2051IS8 LTC2051HVCS8 LTC2051HVIS8 TOP VIEW OUT A 1 8 V+ –IN A 2 7 OUT B +IN A 3 6 –IN B V– 4 5 +IN B S8 PART MARKING S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 125°C, θJA = 190°C/W 2051 2051I 2051HV 051HVI Consult factory for Military grade parts. ELECTRICAL CHARACTERISTICS : (LTC2051, LTC2051HV) The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 5V unless otherwise noted. (Note 3) PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN Input Offset Current ±3 ±0.03 50 UNITS µV µV/°C nV/√mo ±8 ±50 ±100 pA pA ±25 ● ±75 ±150 pA pA VS = 3V VS = 3V ● ±100 ±150 pA pA VS = 5V VS = 5V ● ±150 ±200 pA pA VS = 3V VS = 3V ● VS = 5V VS = 5V Input Noise Voltage RS = 100Ω, DC to 10Hz Common Mode Rejection Ratio VCM = V – to V + – 1.3, VS = 3V 1.5 µVP-P ● 115 110 130 130 dB dB ● 120 115 130 130 dB dB ● 120 115 130 130 dB dB VCM = V – to V + – 1.3, VS = 5V Power Supply Rejection Ratio 2 MAX ● Long-Term Offset Drift Input Bias Current TYP ±0.5 LTC2051 ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 5V unless otherwise noted. (Note 3) PARAMETER CONDITIONS MIN TYP Large-Signal Voltage Gain RL = 10k, VS = 3V ● 120 115 140 140 dB dB ● 125 120 140 140 dB dB ● ● V+ – 0.15 V+ – 0.05 V+ – 0.06 V+ – 0.02 V V RL = 10k, VS = 5V Maximum Output Voltage Swing RL = 2k RL = 10k Slew Rate 2 Gain Bandwidth Product Supply Current (2 Amplifiers) MAX V/µs 3 MHz No Load, VS = 3V ● 1.5 2.0 No Load, VS = 5V ● 1.7 2.4 Internal Sampling Frequency UNITS 7.5 mA mA kHz The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±5V unless otherwise noted. (Note 3) (LTC2051HV) PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN TYP MAX ±1 ±3 ±0.03 ● Long-Term Offset Drift 50 ±90 RS = 100Ω, DC to 10Hz VCM = V – to V + – 1.3 pA pA ● ±300 ±500 pA pA 1.5 µVP-P ● 125 120 130 130 dB dB ● 120 115 130 130 dB dB ● 125 120 140 140 dB dB ● ● 4.80 4.95 4.92 4.98 V V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing RL = 10k RL = 2k RL = 10k µV/°C nV/√mo ±150 ±300 Input Offset Current Common Mode Rejection Ratio µV ● Input Bias Current Input Noise Voltage UNITS Slew Rate 2 V/µs Gain Bandwidth Product 3 MHz Supply Current (2 Amplifiers) No Load 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. ● 2 7.5 3 mA kHz Note 3: The LTC2051C, LTC2051HVC is guaranteed to meet specified performance from 0°C to 70°C and is designed, characterized and expected to meet these extended temperature limits, but is not tested at – 40°C and 85°C. The LTC2051I, LTC2051HVI is guaranteed to meet the extended temperature limits. 3 LTC2051 U PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted. MS8 Package 8-Lead Plastic MSOP (LTC DWG # 05-08-1660) 0.040 ± 0.006 (1.02 ± 0.15) 0.007 (0.18) 0.034 ± 0.004 (0.86 ± 0.102) 0.118 ± 0.004* (3.00 ± 0.102) 8 7 6 5 0° – 6° TYP 0.021 ± 0.006 (0.53 ± 0.015) SEATING PLANE 0.012 (0.30) 0.0256 REF (0.65) BSC 0.006 ± 0.004 (0.15 ± 0.102) 0.118 ± 0.004** (3.00 ± 0.102) 0.193 ± 0.006 (4.90 ± 0.15) MSOP (MS8) 1098 1 * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE 2 3 4 S8 Package 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 0.010 – 0.020 × 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) 8 7 6 5 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) TYP 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) *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 1 2 3 4 SO8 0996 RELATED PARTS PART NUMBER DESCRIPTION LTC1051/LTC1053 Precision Zero-Drift Op Amp COMMENTS Dual/Quad LTC1151 ±15V Zero-Drift Op Amp Dual High Voltage Operation ±18V LTC1152 Rail-to-Rail Input and Output Zero-Drift Op Amp Single Zero-Drift Op Amp with Rail-to-Rail Input and Output and Shutdown LTC2050 Zero-Drift Op Amp in SOT-23 Single Supply Operation 2.7V to 6V, Shutdown 4 Linear Technology Corporation 2051i LT/TP 0200 4K • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 2000