ADS8322
ADS
832
®
2
SBAS215 – JULY 2001
16-Bit, 500kHz, MicroPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q
HIGH-SPEED PARALLEL INTERFACE
q
500kHz SAMPLING RATE
q
LOW POWER: 85mW at 500kHz
q
INTERNAL 2.5V REFERENCE
q
UNIPOLAR INPUT RANGE
q
TQFP-32 PACKAGE
DESCRIPTION
The ADS8322 is a 16-bit, 500kHz Analog-to-Digital (A/D)
converter with an internal 2.5V reference. The device in-
cludes a 16-bit capacitor-based Successive Approximation
Register (SAR) A/D converter with inherent sample-and-
hold. The ADS8322 offers a full 16-bit interface, or an 8-bit
option where data is read using two read cycles and 8 pins.
The ADS8322 is available in a TQFP-32 package and is
guaranteed over the industrial –40°C to +85°C temperature
range.
APPLICATIONS
q
q
q
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CT SCANNERS
HIGH SPEED DATA ACQUISITION
TEST AND INSTRUMENTATION
MEDICAL EQUIPMENT
SAR
Output Latches
and
Three State
Drivers
BYTE
ADS8322
Parallel
Data
Output
+IN
CDAC
–IN
S/H Amp
Comparator
REF
IN
REF
OUT
Internal
+2.5V Ref
Conversion
and Control
Logic
CLOCK
CONVST
CS
RD
BUSY
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2001, Texas Instruments Incorporated
www.ti.com
BURR-BROWN [ BURR-BROWN CORPORATION ]
