ADS8322
®
ADS8322
SBAS215 – JULY 2001
16-Bit, 500kHz, MicroPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
DESCRIPTION
ꢀ HIGH-SPEED PARALLEL INTERFACE
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.
ꢀ 500kHz SAMPLING RATE
ꢀ LOW POWER: 85mW at 500kHz
ꢀ INTERNAL 2.5V REFERENCE
ꢀ UNIPOLAR INPUT RANGE
ꢀ TQFP-32 PACKAGE
The ADS8322 is available in a TQFP-32 package and is
guaranteed over the industrial –40°C to +85°C temperature
range.
APPLICATIONS
ꢀ CT SCANNERS
ꢀ HIGH SPEED DATA ACQUISITION
ꢀ TEST AND INSTRUMENTATION
ꢀ MEDICAL EQUIPMENT
BYTE
SAR
Output Latches
and
Three State
Parallel
Data
Output
Drivers
ADS8322
+IN
CDAC
–IN
S/H Amp
CLOCK
Comparator
CONVST
Conversion
and Control
Logic
CS
REFIN
RD
Internal
+2.5V Ref
REFOUT
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.
Copyright © 2001, Texas Instruments Incorporated
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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