LTC2057/LTC2057HV High Voltage, Low Noise Zero-Drift Operational Amplifier FeaTuresDescripTion n Supply Voltage Range The LTC®2057 is a high voltage, low noise, zero-drift op-
n 4.75V to 36V (LTC2057) erational amplifier that offers precision DC performance
n 4.75V to 60V (LTC2057HV) over a wide supply range of 4.75V to 36V or 4.75V to n Offset Voltage: 4μV (Maximum) 60V for the LTC2057HV. Offset voltage and 1/f noise are n Offset Voltage Drift: 0.015μV/°C suppressed, allowing this amplifier to achieve a maximum (Maximum, –40°C to 125°C) offset voltage of 4μV and a DC to 10Hz input noise volt- n Input Noise Voltage age of 200nVP-P (typ). The LTC2057’s self-calibrating
n 200nVP-P, DC to 10Hz (Typ) circuitry results in low offset voltage drift with temperature,
n 11nV/√Hz, 1kHz (Typ) n 0.015μV/°C (max), and zero-drift over time. The amplifier Input Common Mode Range: V– – 0.1V to V+ – 1.5V n also features an excellent power supply rejection ratio Rail-to-Rail Output n (PSRR) of 160dB and a common mode rejection ratio Unity Gain Stable n Gain Bandwidth Product: 1.5MHz (Typ) (CMRR) of 150dB (typ). n Slew Rate: 0.45V/μs (Typ) The LTC2057 provides rail-to-rail output swing and an n AVOL: 150dB (Typ) input common mode range that includes the V– rail (V– – n PSRR: 160dB (Typ) 0.1V to V+ – 1.5V). In addition to low offset and noise, this n CMRR: 150dB (Typ) n amplifier features a 1.5MHz (typ) gain-bandwidth product Shutdown Mode and a 0.45V/μs (typ) slew rate. applicaTions Wide supply range, combined with low noise, low offset, n High Resolution Data Acquisition and excellent PSRR and CMRR make the LTC2057 and n Reference Buffering LTC2057HV well suited for high dynamic-range test, n Test and Measurement n measurement, and instrumentation systems. Electronic Scales L, LT, LTC, LTM, Linear Technology, Over-The-Top, and the Linear logo are registered n Thermocouple Amplifiers trademarks of Linear Technology Corporation. All other trademarks are the property of their n respective owners. Strain Gauges n Low-Side Current Sense n Automotive Monitors and Control Typical applicaTionWide Input Range Precision Gain-of-100 Instrumentation AmplifierInput Offset Voltagevs Supply Voltage 30V 5 –IN + 5 TYPICAL UNITS 4 VCM = VS/2 LTC2057HV T 3 A = 25°C – 18V 2 –30V 1 11.5k 8 7 M9 9 V (µV) M3 CC 0 10 232Ω M1 6 V OS –1 11.5k LT1991A OUT VOUT 1 P1 REF –2 2 P3 V 30V EE 3 5 –3 P9 4 – –4 –18V –5 LTC2057HV 2057 TA01a 0 5 10 15 20 25 30 35 40 45 50 55 60 65 +IN + INPUT CM RANGE = ±28V WITH 4V OF OUTPUT SWING VS (V) 2057 TA01b CMRR = 130dB (TYP), INPUT OFFSET VOLTAGE = 1µV (TYP) –30V 2057f For more information www.linear.com/LTC2057 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Applications Information Typical Applications Package Description Typical Application Related Parts
