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GENERAL DESCRIPTION

The AD7851 is a high speed, 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 has a number of power-down options for low power applications.

FEATURES

Single 5 V Supply

333 kSPS Throughput Rate/
±2 LSB DNL—A Grade

285 kSPS Throughput Rate/
±1 LSB DNL—K Grade

A and K Grades Guaranteed to 125°C/238 kSPS Throughput Rate

Pseudo-Differential Input with Two Input Ranges

System and Self-Calibration with Autocalibration on Power-Up

Read/Write Capability of Calibration Data

Low Power: 60 mW Typ

Power-Down Mode: 5 μW Typ Power Consumption

Flexible Serial Interface: 8051/SPI®/QSPI™/μP Compatible

24-Lead PDIP, SOIC, and SSOP Packages

APPLICATIONS

Digital Signal Processing

Speech Recognition and Synthesis

Spectrum Analysis

DSP Servo Control

Instrumentation and Control Systems

High Speed Modems

Automotive