GENERAL DESCRIPTIONS

The AD8022 consists of two low noise, high speed, voltage feedback amplifiers. Each amplifier consumes only 4.0 mA of quiescent current, yet has only 2.5 nV/√Hz of voltage noise. These dual amplifiers provide wideband, low distortion performance, with high output current optimized for stability when driving capacitive loads. Manufactured on ADI’s high voltage generation of XFCB bipolar process, the AD8022 operates on a wide range of supply voltages. The AD8022 is available in both an 8-lead MSOP and an 8-lead SOIC. Fast over voltage recovery and wide bandwidth make the AD8022 ideal as the receive channel front end to an ADSL, VDSL, or proprietary xDSL transceiver design.

FEATURES

Low power amplifiers provide low noise and low distortion,

ideal for xDSL modem receiver

Wide supply range: +5 V, ±2.5 V to ±12 V voltage supply

Low power consumption: 4.0 mA/Amp

Voltage feedback

Ease of Use

Lower total noise (insignificant input current noise

contribution compared to current feedback amps)

Low noise and distortion

2.5 nV/√Hz voltage noise @ 100 kHz

1.2 pA/√Hz current noise

MTPR < −66 dBc (G = +7)

SFDR 110 dB @ 200 kHz

High speed

130 MHz bandwidth (−3 dB), G = +1

Settling time to 0.1, 68 ns

50 V/μs slew rate

High output swing: ±10.1 V on ±12 V supply

Low offset voltage, 1.5 mV typical

APPLICATIONS

Receiver for ADSL, VDSL, HDSL, and proprietary

xDSL systems

Low noise instrumentation front end

Ultrasound preamps

Active filters

16-bit ADC buffers

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