BurrBrown Products

from Texas Instruments

1

FEATURES

APPLICATIONS

DESCRIPTION

Successive Approximation Register

Clock

Comparator

CS

CDAC

Buffer

REF

BUF

8 k

Ω

Internal

+2.5 V Ref

4 k

Ω

Serial

Data

Out

&

Control

BUSY

BUSY

DATACLK

40 k

Ω

EXT/INT

PWRD

SDATA

CONV

CAP

20 k

Ω

ADS8513

www.ti.com

SLAS486 – JUNE 2007

16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH

INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE

•

Industrial Process Control

2

• 40-kHz Min Sampling Rate

•

Test Equipment

•

Very Low Power: 25 mW

•

Robotics

•

±3.33-V, ±5-V, ±10-V, 4-V, and 10-V Input

•

DSP Servo Control

Ranges

•

Medical Instrumentation

•

89.9-dB SINAD with 10-kHz Input

•

Portable Data Acquisition Systems

•

±1.5 LSB Max INL

•

±1 LSB Max DNL, 16-Bit NMC

•

±5-mV BPZ, ±0.4 PPM/

°C BPZ Drift

The ADS8513 is a complete low-power, single 5-V

•

87-dB Min SINAD, 96-dB Min SFDR

supply,

16-bit

sampling

analog-to-digital

(A/D)

•

Uses Internal or External 2.5-V Reference

converter.

It

contains

a

complete

16-bit

capacitor-based, successive approximation register

•

No External Calibration Resistors Required

(SAR) A/D converter with sample and hold, clock,

•

Single 5-V Analog Supply

reference, and serial data interface. The converter

–

40-mW Max Power Dissipation

can be configured for a variety of input ranges

including ±10 V, ±5 V, 0 V to 10 V, and 0.5 V to

–

50-

μW Max Power-Down Mode

4.5 V. A high-impedance, 0.3-V to 2.8-V input is also

•

20-Mhz Compatible SPI

available with input impedance greater than 10 M

Ω.

•

Global CONV and 3-Stated Bus for Multi-Chip

For most input ranges, the input voltage can swing to

Simultaneous S/H Operation

25 V or –25 V without damage to the converter.

•

Pin-Compatible with ADS7813 and 12-Bit

An SPI-compatible serial interface allows data to be

ADS7812/8512

synchronized to an internal or external clock. The

•

SO-16 Package

ADS8513 is specified at 40-kHz sampling rate over

the industrial –40

°C to 85°C temperature range.

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

QSPI, SPI are trademarks of Motorola, Inc.

PRODUCT PREVIEW information concerns products in the

Copyright © 2007, Texas Instruments Incorporated

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.