OPA837 Overview
The OPA837 and OPA2837 are single- and dualchannel unity-gain stable, voltage-feedback amplifiers that provide among the highest MHz per mW of bandwidth versus power among precision op amps. Using only 600 µA per channel on a single 5-V supply, these 3.0-mW devices deliver 105-MHz bandwidth at a gain of 1 V/V. The very low trimmed offset voltage of ±130 µV (maximum) es with a typical (±1σ) drift of ±0.4 µV/°C.
OPA837 Key Features
- 1 Bandwidth: 105 MHz (AV = 1 V/V)
- Very Low (Trimmed) Supply Current: 600 µA
- Gain Bandwidth Product: 50 MHz
- Slew Rate: 105 V/µs
- Negative Rail Input, Rail-to-Rail Output
- Single-Supply Operating Range: 2.7 V to 5.4 V
- 25°C Input Offset: ±130 µV (Max)
- Input Offset Voltage Drift (DCK Package)
- Input Voltage Noise: 4.7 nV/√Hz (> 100 Hz)
- HD2: -120 dBc at 2 VPP, 100 kHz
OPA837 Applications
- 12-Bit to 16-Bit, Low-Power SAR Drivers