GENERAL DESCRIPTION

The ADA4627-1/ADA4637-1 are wide bandwidth precision amplifiers featuring low noise, very low offset, drift, and bias current. The devices operate from ±5 V to ±15 V dual supply.

The ADA4627-1/ADA4637-1 provide benefits previously found in few amplifiers. These amplifiers combine the best specifications of precision dc and high speed ac op amps. The ADA4637-1 is a decompensated version of the ADA4627-1 and is stable at a noise gain of 5 or greater.

FEATURES

Low offset voltage: 200 μV maximum

Offset drift: 1 μV/°C typical

Very low input bias current: 5 pA maximum

Extended temperature range: −40°C to +125°C

±5 V to ±15 V dual supply

ADA4627-1 GBW: 19 MHz

ADA4637-1 GBW: 79 MHz

Voltage noise: 6.1 nV/√Hz at 1 kHz

ADA4627-1 slew rate: 82 V/μs

ADA4637-1 slew rate: 170 V/μs

High gain: 120 dB typical

High CMRR: 116 dB typical

High PSRR: 112 dB typical

APPLICATIONS

High impedance sensors

Photodiode amplifier

Precision instrumentation

Phase-locked loop filters

High end, professional audio

DAC output amplifier

ATE

Medical