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GENERAL DESCRIPTION

The AD7856 is a high speed, low power, 14-bit ADC that operates from a single 5 V power supply. The ADC powers up with a set of default conditions at which time it can be operated as a read only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and it has a number of power-down options for low power applications.

FEATURES

Single 5? V Supply

285 kSPS Throughput Rate

Self- and System Calibration with Autocalibration on

Power-Up

Eight Single-Ended or Four Pseudo-Differential Inputs

Low Power: 60 mW Typ

Automatic Power-Down After Conversion (2.5 μW Typ)

Flexible Serial Interface: 8051/SPI?/QSPI?/mP Compatible

24-Lead DIP, SOIC and SSOP Packages

APPLICATIONS

Battery-Powered Systems (Personal Digital Assistants,

Medical Instruments, Mobile Communications)

Pen Computers

Instrumentation and Control Systems

High Speed Modems