SAR

Control

D

OUT

Comparator

S/H Amp

CS/SHDN

DCLOCK

+IN

V

REF

–IN

CDAC

Serial

Interface

ADS8320-HT

www.ti.com

SBAS521A – DECEMBER 2010 – REVISED APRIL 2012

16-BIT, HIGH-SPEED, 2.7-V TO 5-V, MICROPOWER SAMPLING

ANALOG-TO-DIGITAL CONVERTER

Check for Samples: ADS8320-HT

1

FEATURES

SUPPORTS EXTREME TEMPERATURE

APPLICATIONS

2

•

100-kHz Sampling Rate

•

Controlled Baseline

•

Micropower:

•

One Assembly/Test Site

–

3.8 mW at 100 kHz and 2.7 V

•

One Fabrication Site

–

0.3 mW at 10 kHz and 2.7 V

•

Available in Extreme (–55°C/210°C)

•

Power Down: 6 µA max

•

8-Pin Ceramic Package

•

Extended Product Life Cycle

•

Pin Compatible to ADS7816 and ADS7822

•

Extended Product-Change Notification

•

Serial ( SPI™/SSI) Interface

•

Product Traceability

APPLICATIONS

•

Texas Instruments' high temperature products

utilize highly optimized silicon (die) solutions

•

Down-Hole Drilling

with design and process enhancements to

•

High Temperature Environments

maximize performance over extended

•

Vibration/Modal Analysis

temperatures.

•

Multi-Channel Data Acquisition

•

Acoustics/Dynamic Strain Gauges

•

Pressure Sensors

(1)

Custom temperature ranges available

DESCRIPTION

The ADS8320 is a 16-bit, sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7-V to

5.25-V supply range. It requires very little power even when operating at the full 100-kHz data rate. At lower data

rates, the high speed of the device enables it to spend most of its time in the power-down mode—the average

power dissipation is less than 100 mW at 10-kHz data rate.

The ADS8320 also features operation from 2 V to 5.25 V, a synchronous serial (SPI/SSI compatible) interface,

Ultra-low power and small size make the ADS8320 ideal for portable and battery-operated systems. It is also a

perfect fit for remote data acquisition modules, simultaneous multi-channel systems, and isolated data

acquisition. The ADS8320 is available in 8-pin ceramic surface-mount packages, specified for the –55°C to

210°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

SPI is a trademark of Motorola, Inc..

PRODUCTION DATA information is current as of publication date.

Copyright © 2010–2012, 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.