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GENERAL DESCRIPTION

The AD8655/AD8656 are the industry’s lowest noise, precision CMOS amplifiers. They leverage the Analog Devices DigiTrim? technology to achieve high dc accuracy.

The AD8655/AD8656 provide low noise (2.7 nV/√Hz at 10 kHz), low THD + N (0.0007), and high precision performance (250 μV max over VCM) to low voltage applications. The ability to swing rail-to-rail at the input and output enables designers to buffer analog-to-digital converters (ADCs) and other wide dynamic range devices in single-supply systems.

FEATURES

Low noise: 2.7 nV/√Hz at f = 10 kHz

Low offset voltage: 250 μV max over VCM

Offset voltage drift: 0.4 μV/°C typ and 2.3 μV/°C max

Bandwidth: 28 MHz

Rail-to-rail input/output

Unity gain stable

2.7 V to 5.5 V operation

?40°C to +125°C operation

Qualified for automotive applications

APPLICATIONS

ADC and DAC buffers

Audio

Industrial controls

Precision filters

Digital scales

Automotive collision avoidance

PLL filters