FEATURES

► Low power at high voltage (18 V): 725 μA maximum

► Low offset voltage

► 150 μV maximum at VSY/2

► 300 μV maximum over entire common-mode range

► Low input bias current: 15 pA maximum

► Gain bandwidth product: 4 MHz typical at AV = 100

► Unity-gain crossover: 4 MHz typical

► −3 dB closed-loop gain: 2.1 MHz typical

► Single-supply operation: 3 V to 18 V

► Dual-supply operation: ±1.5 V to ±9 V

► Unity-gain stable

APPLICATIONS

► Current shunt monitors

► Active filters

► Portable medical equipment

► Buffer/level shifting

► High impedance sensor interfaces

► Battery-powered instrumentation

GENERAL DESCRIPTION

The ADA4661-2-KGD is a dual, precision, rail-to-rail input/output

amplifier optimized for low power, high bandwidth, and wide operating

supply voltage range applications.

The ADA4661-2-KGD performance is guaranteed at 3.0 V, 10 V,

and 18 V power supply voltages. It uses the Analog Devices,

Inc., patented DigiTrim® trimming technique, which achieves low

offset voltage. Additionally, the unique design architecture of the

ADA4661-2-KGD allows it to have excellent power supply rejection,

common-mode rejection, and offset voltage when operating in the

common-mode voltage range of −VSY + 1.5 V to +VSY − 1.5 V.

The ADA4661-2-KGD is specified over the extended industrial

temperature range (−40°C to +125°C). Additional application and

technical information can be found in the ADA4661-2 data sheet.

Known Good Die (KGD): these die are guaranteed to data sheet

specifications.