12-Bit, 25MHz Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

q NO MISSING CODES

q LOW POWER: 270mW

q INTERNAL REFERENCE

q WIDEBAND TRACK-AND-HOLD: 65MHz

q SINGLE +5V SUPPLY

DESCRIPTION

The ADS801 is a low-power, monolithic 12-bit, 25MHz Ana-

log-to-Digital (A/D) converter utilizing a small geometry CMOS

process. This complete converter includes a 12-bit quantizer,

wideband track-and-hold, reference, and three-state outputs.

It operates from a single +5V power supply and can be

configured to accept either single-ended or differential input

signals.

The ADS801 employs digital error correction to provide

excellent Nyquist differential linearity performance for de-

manding imaging applications. Its low distortion, high SNR,

and high oversampling capability give it the extra margin

needed for telecommunications, instrumentation, and video

applications.

This high-performance A/D converter is specified over tem-

perature for AC and DC performance at a 25MHz sampling

rate. The ADS820 is available in an SO-28 package.

APPLICATIONS

q IF AND BASEBAND DIGITIZATION

q DIGITAL COMMUNICATIONS

q TEST INSTRUMENTATION

q CCD IMAGING

Copiers

Scanners

Cameras

q VIDEO DIGITIZING

q GAMMA CAMERAS

Pipeline

A/D

Converter

Timing

Circuitry

Error

Correction

Logic

3-State

Outputs

T/H

12-Bit

Digital

Data

CLK

+1.25V

+3.25V

MSBI

OE

IN

IN

REFT

CM

REFB

ADS801

SBAS036B – MAY 1995 – REVISED FEBRUARY 2005

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Copyright © 1995-2005, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

ADS8

01U

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