Successive Approximation Register

Clock

Comparator

CS

CDAC

Buffer

REF

CAP

25.67k

Ω

7k

Ω

Internal

+4.096V Ref

4k

Ω

Serial

Data

Out

and

Control

BUSY

DATACLK

DATA

2.87k

Ω

7k

Ω

EXT/INT

R/C

SB/BTC

PWRD

TAG

ADS8519

www.ti.com

SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010

16-Bit, 250kSPS, Serial, CMOS, Sampling

ANALOG-TO-DIGITAL CONVERTER

Check for Samples: ADS8519

1

FEATURES

DESCRIPTION

23

•

0V to 8.192V, ±5V, and ±10V Input Ranges

The

ADS8519

is

a

complete

16-bit

sampling

analog-to-digital (A/D) converter using state-of-the-art

•

93dB SNR with 20kHz Input

CMOS structures. It contains a complete 16-bit,

•

±1.5LSB Max INL

capacitor-based, successive approximation register

•

±1LSB Max DNL; 16 Bits, No Missing Codes

(SAR)

A/D

converter

with

sample-and-hold,

•

SPI™-Compatible Serial Output with

reference, clock, and a serial data interface. Data can

be output using the internal clock or synchronized to

Daisy-Chain (TAG) Feature and 3-State Bus

an external data clock. The ADS8519 also provides

•

5V Analog Supply, 1.65V to 5.25V I/O Supply

an output synchronization pulse for ease-of-use with

•

Pinout Similar to 16-Bit ADS7809 (Low-Speed)

standard DSP processors.

and 12-Bit ADS7808 and ADS8508

The ADS8519 is specified at a 250kSPS sampling

•

No External Precision Resistors Required

rate over the full temperature range. Internal precision

•

Uses Internal or External Reference

resistors provide various input ranges including ±10V,

±5V, and 0V to 8.192V, while the innovative design

•

110mW Typ Power Dissipation at 250kSPS

allows operation from a single 5V supply with power

•

28-Pin SSOP Package

dissipation under 125mW.

•

Simple DSP Interface

The ADS8519 is available in a 28-pin SSOP

package, and is fully specified for operation over the

APPLICATIONS

industrial –40°C to +85°C temperature range.

•

Industrial Process Control

•

Data Acquisition Systems

•

Digital Signal Processing

•

Medical Equipment

•

Instrumentation

1

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.

2

SPI is a trademark of Motorola, Inc.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.