GENERAL DESCRIPTION

The ADAS3022 is a complete 16-bit, 1 MSPS, successive approximation based analog-to-digital data acquisition system, which is manufactured on Analog Devices, Inc., proprietary iCMOS® high voltage industrial process technology. The device integrates an 8-channel, low leakage multiplexer; a high impedance programmable gain instrumentation amplifier (PGIA) stage with high common-mode rejection; a precision, low drift 4.096 V reference and buffer; and a 16-bit charge redistribution analog-to-digital converter (ADC) with successive approximation register (SAR) architecture.

FEATURES

Ease of use—16-bit, 1 MSPS complete data acquisition system

High impedance, 8-channel input: >500 MΩ

Differential input voltage range: ±24.576 V maximum

High input common-mode rejection: >100 dB

User-programmable input ranges

Channel sequencer with individual channel gains

On-chip 4.096 V reference and buffer

Auxiliary input—direct interface to PulSAR ADC inputs

No latency or pipeline delay (SAR architecture)

Serial 4-wire, 1.8 V to 5 V SPI-/SPORT-compatible interface

LFCSP package (6 mm × 6 mm)

LQFP package (7 mm × 7 mm)

−40°C to +85°C industrial temperature range

APPLICATIONS

Multichannel data acquisition and system monitoring

Process control

Power line monitoring

Automated test equipment

Instrumentation