GENERAL DESCRIPTION

The AD8682 and AD8684 are dual and quad low power, precision (1 mV) JFET amplifiers featuring excellent speed at low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3.5 MHz. The JFET input stage ensures bias current is typically a few picoamps and below 125 pA maximum over the full temperature operating range.

FEATURES

Low supply current: 250 μA/amp maximum

High slew rate: 9 V/μs

Bandwidth: 3.5 MHz typical

Low offset voltage: 1 mV maximum @ 25°C

Low input bias current: 20 pA maximum @ 25°C

CMRR: 90 dB typical

Fast settling time

Unity gain stable