LTC2057 Datasheet

• Supply Voltage Range
  • 4.75V to 36V (LTC2057)
• Offset Voltage: 4μV (Maximum)
• Offset Voltage Drift: 0.015μV/°C (Maximum, –40°C to 125°C)
• Input Noise Voltage
  • 200nV_P-P, DC to 10Hz (Typ)
  • 11nV/√Hz, 1kHz (Typ)
• Input Common Mode Range: V^– – 0.1V to V⁺ – 1.5V
• Rail-to-Rail Output
• Unity Gain Stable
• Gain Bandwidth Product: 1.5MHz (Typ)
• Slew Rate: 0.45V/μs (Typ)
• A_VOL: 150dB (Typ)
• PSRR: 160dB (Typ)
• CMRR: 150dB (Typ)
• Shutdown Mode

• High Resolution Data Acquisition
• Reference Buffering
• Test and Measurement
• Electronic Scales
• Thermocouple Amplifiers
• Strain Gauges
• Low-Side Current Sense
• Automotive Monitors and Control

The LTC2057 is a high voltage, low noise, zero-drift operational amplifier that offers precision DC performance over a wide supply range of 4.75V to 36V. Offset voltage and 1/f noise are suppressed, allowing this amplifier to achieve a maximum offset voltage of 4μV and a DC to 10Hz input noise voltage of 200nV_P-P (typ). The LTC2057’s self-calibrating circuitry results in low offset voltage drift with temperature, 0.015μV/°C (max), and zero-drift over time. The amplifier also features an excellent power supply rejection ratio (PSRR) of 160dB and a common mode rejection ratio (CMRR) of 150dB (typ).

The LTC2057 provides rail-to-rail output swing and an input common mode range that includes the V– rail (V^– – 0.1V to V⁺ – 1.5V). In addition to low offset and noise, this amplifier features a 1.5MHz (typ) gain-bandwidth product and a 0.45V/μs (typ) slew rate.

Wide supply range, combined with low noise, low offset, and excellent PSRR and CMRR make the LTC2057 well suited for high dynamic-range test, measurement, and instrumentation systems.