BurrBrown Products

from Texas Instruments

FEATURES

APPLICATIONS

DESCRIPTION

REF−

+IN

REF+

SDI

SCLK

SDO

CDAC

SAR

COMPARATOR

OUTPUT

LATCH

and

3−STATE

DRIVER

CONVERSION

and

CONTROL

LOGIC

−IN

+IN1

+IN0

COM

NC

OSC

_

+

ADS8330

ADS8329

FS/CS

CONVST

EOC/INT/CDI

ADS8329

ADS8330

SLAS516 – DECEMBER 2006

LOW POWER, 16-BIT, 1-MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL

CONVERTERS WITH SERIAL INTERFACE

• Communications

• 2.7-V to 5.5-V Analog Supply, Low Power:

• Transducer Interface

–

15.5 mW (1 MHz, +VA = 3 V, +VBD = 1.8 V)

• Medical Instruments

• 1-MHz Sampling Rate 3 V ≤ +VA ≤ 5.5 V,

• Magnetometers

900-kHz Sampling Rate 2.7 V

≤ +VA ≤ 3 V

• Industrial Process Control

• Excellent DC Performance

• Data Acquisition Systems

–

±1.0 LSB Typ, ±1.75 LSB Max INL

• Automatic Test Equipment

–

±0.5 LSB Typ, ±1 LSB Max DNL

–

16-Bit NMC Over Temperature

–

±0.5 mV Max Offset Error at 3 V

The ADS8329 is a low power, 16-bit, 1-MSPS

–

±1 mV Max Offset Error at 5 V

analog-to-digital converter with a unipolar input. The

• Excellent AC Performance at f

device includes a 16-bit capacitor-based SAR A/D

converter with inherent sample and hold.

92 dB SNR, 102 dB SFDR, –102 dB THD

• Built-In Conversion Clock (CCLK)

The ADS8330 is based on the same core and

includes a 2-to-1 input MUX with programmable

• 1.65 V to 5.5 V I/O Supply

option of TAG bit output. Both the ADS8329 and

–

SPI/DSP Compatible Serial

ADS8330 offer a high-speed, wide voltage serial

–

SCLK up to 50 MHz

interface and are capable of chain mode operation

when multiple converters are used.

• Comprehensive Power-Down Modes:

–

Deep Powerdown

These converters are available in a 4x4 QFN

package and are fully specified for operation over the

–

Nap Powerdown

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

–

Auto Nap Powerdown

• Unipolar Input Range: 0 V to V

ref

Low Power, High-Speed SAR Converter Family

• Software Reset

Type/Speed

500 kHz

1 MHz

• Global CONVST (Independent of CS)

Single

ADS8327

ADS8329

16 Bit Pseudo-Diff

• Programmable Status/Polarity EOC/INT

Dual

ADS8328

ADS8330

• 16-Pin 4 x 4 QFN Package

• Multi-Chip Daisy Chain Mode

• Programmable TAG Bit Output

• Auto/Manual Channel Select Mode (ADS8330)

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.

Copyright © 2006, 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.