Analog Devices Inc. MAX74810 Zero-Drift Rail-to-Rail Output Op Amps

Analog Devices MAX74810 Zero-Drift Rail-to-Rail Output Operational Amplifiers are dual-channel, zero-drift op amps with low noise and power, ground-sensing inputs, and rail-to-rail output, optimized for total accuracy over time, temperature, and voltage conditions. The wide operating voltage/temperature ranges, the high open-loop gain, and very low DC and AC errors make the devices suitable for amplifying minimal input signals and for accurately reproducing larger signals in a wide variety of applications. The ADI MAX74810 devices are fully specified over the extended industrial temperature range of -40°C to +125°C, and are available in an 8-lead MSOP package.

The MAX74810 performance is specified at 5.0V and 50V power supply voltages. These devices operate over the range of 4.5V to 50V, and are excellent for applications using single-ended supplies of 5V, 10V, 12V, and 30V, or for applications using higher single supplies and dual supplies of ±2.5V, ±5V, and ±15V. The MAX74810 uses on-chip filtering to achieve high immunity to electromagnetic interference (EMI).

Features

Low 7µV (maximum) offset voltage
Extremely low 30nV/°C (maximum) offset voltage drift
Low 5.8nV/√Hz typical voltage noise density, 117nVp-p typical from 0.1Hz to 10Hz
Low 50pA typical input bias current
2.7MHz gain-bandwidth product
Single-supply operation - input voltage range includes ground and rail-to-rail output

Wide range of operating voltages
- 4.5V to 50V single-supply operation
- ±2.25V to ±25V dual-supply operation
Integrated EMI filters
Unity-gain stable
-40°C to +125°C operating temperature range
8-lead MSOP package

Applications

Inductance, capacitance, and resistance (LCR) meter/megohmmeter front-end amplifiers
Load cells and bridge transducers
Magnetic force balance scales
High precision shunt current sensing
Thermocouple/resistance temperature detector (RTD) sensors