36V, Low Noise Zero-Drift Operational Amplifier

The LTC®2058 is a dual, 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 5μV and a DC to 10Hz input noise voltage of 200nVP-P (Typ). The LTC2058’s selfcalibrating circuitry results in low offset voltage drift with temperature, 0.025μV/°C (Max), and practically zero drift over time. The amplifier also features an excellent power supply rejection ratio (PSRR) of 150dB and a common mode rejection ratio (CMRR) of 150dB (Typ).

The LTC2058 provides rail-to-rail output swing and an input common mode range that includes the V– rail. In addition to low offset and noise, this amplifier features a 2.5MHz (Typ) gain-bandwidth product and a 1.6V/μs (Typ) slew rate.

Wide supply range, combined with low noise, low offset, and excellent PSRR and CMRR make the LTC2058 well suited for high dynamic-range test, measurement, and instrumentation systems.

Applications

* High Resolution Data Acquisition

* Reference Buffering

* Test and Measurement

* Electronic Scales

* Thermocouple Amplifiers

* Strain Gauges

* Low Side Current Sense

* Automotive Monitors and Control

* Supply Voltage Range: 4.75V to 36V* Offset Voltage: 5μV (Maximum)* Offset Voltage Drift: 0.025μV/°C

* Maximum, –40°C to 125°C * Input Noise Voltage

* 200nVP-P, DC to 10Hz (Typ)

* 9nV/√Hz, 1kHz (Typ)

* Input Common Mode Range:

* V– – 0.1V to V+ – 1.5V