GENERAL DESCRIPTION

The AD7853/AD7853L are high speed, low power, 12-bit ADCs that operate from a single 3 V or 5 V power supply, the AD7853 being optimized for speed and the AD7853L for low power. 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 have a number of power-down options for low power applications.

FEATURES

Specified for VDD of 3 V to 5.5 V

Read-Only Operation

AD7853–200 kSPS; AD7853L–100 kSPS

System and Self-Calibration with Autocalibration on Power-Up

Low Power:

AD7853: 12 mW (VDD = 3 V)

AD7853L: 4.5 mW (VDD = 3 V)

Automatic Power Down After Conversion (25 μW)

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