GENERAL DESCRIPTION

The ADA4857 is a unity-gain stable, high speed, voltage feedback amplifier with low distortion, low noise, and high slew rate. With a spurious-free dynamic range (SFDR) of −88 dBc at 10 MHz, the ADA4857 is an ideal solution for a variety of applications, including ultrasounds, ATE, active filters, and ADC drivers. The Analog Devices, Inc., proprietary next-generation XFCB process and innovative architecture enables such high performance amplifiers.

FEATURES

High speed

850 MHz, −3 dB bandwidth (G = +1, RL = 1 kΩ, LFCSP)

750 MHz, −3 dB bandwidth (G = +1, RL = 1 kΩ, SOIC)

2800 V/μs slew rate

Low distortion: −88 dBc at 10 MHz (G = +1, RL = 1 kΩ)

Low power: 5 mA/amplifier at 10 V

Low noise: 4.4 nV/√Hz

Wide supply voltage range: 5 V to 10 V

Power-down feature

Available in 3 mm × 3 mm 8-lead LFCSP (single), 8-lead SOIC

(single), and 4 mm × 4 mm 16-lead LFCSP (dual)

APPLICATIONS

Instrumentation

IF and baseband amplifiers

Active filters

ADC drivers

DAC buffers