ADS5422

14-Bit, 62MSPS Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

q HIGH DYNAMIC RANGE:

q PREMIUM TRACK-AND-HOLD:

Differential Inputs

Selectable Full-Scale Input Range

q FLEXIBLE CLOCKING:

Differential or Single-Ended

Accepts Sine or Square Wave Clocking Down to

0.5Vp-p

Variable Threshold Level

APPLICATIONS

q COMMUNICATIONS RECEIVERS

q TEST INSTRUMENTATION

q CCD IMAGING

14-Bit

Pipelined

ADC

Core

Reference and

Mode Select

Reference Ladder

and Driver

Timing Circuitry

Error

Correction

Logic

3-State

Outputs

T&H

D0

D13

•

•

•

+V

S

ADS5422

CLK

CLK

OE

SEL2

REFB

V

REF

REFT

VDRV

IN

2Vp-p

2Vp-p

CM

(+2.5V)

PD

SEL1

IN

DV

ADS5422

SBAS250C – MARCH 2002 – REVISED MARCH 2004

www.ti.com

Copyright © 2002-2004, 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.

DESCRIPTION

The ADS5422 is a high-dynamic range, 14-bit, 62MSPS,

pipelined Analog-to-Digital Converter (ADC). It includes a

high-bandwidth linear track-and-hold amplifier that gives good

spurious performance up to the Nyquist rate. The clock input

can accept a low-level differential sine wave or square wave

signal down to 0.5Vp-p, further improving the Signal-to-Noise

Ratio (SNR) performance.

The ADS5422 has a 4Vp-p differential input range

(2Vp-p • 2 inputs) for optimum Spurious-Free Dynamic

Range (SFDR). The differential operation gives the lowest

even-order harmonic components. A lower input voltage can

also be selected using the internal references, further optimizing

SFDR.

The ADS5422 is available in an LQFP-64 package.

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.