ADS8322 Datasheet, PDF (1/19 Pages) Burr-Brown (TI) – 16-Bit, 500kHz, MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER

ADS8322
www.ti.com
SBAS215A – JULY 2001 – REVISED JANUARY 2010
16-Bit, 500kHz, MicroPower Sampling
ANALOG-TO-DIGITAL CONVERTER
Check for Samples: ADS8322
FEATURES
1
•2 HIGH-SPEED PARALLEL INTERFACE
• 500kHz SAMPLING RATE
• LOW POWER: 85mW at 500kHz
• INTERNAL 2.5V REFERENCE
• UNIPOLAR INPUT RANGE
• TQFP-32 PACKAGE
APPLICATIONS
• CT SCANNERS
• HIGH-SPEED DATA ACQUISITION
• TEST AND INSTRUMENTATION
• MEDICAL EQUIPMENT
DESCRIPTION
The ADS8322 is a 16-bit, 500kHz analog-to-digital
(A/D) converter with an internal 2.5V reference. The
device includes 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 are
read using two read cycles and eight pins. The
ADS8322 is available in a TQFP-32 package and is
ensured over the industrial –40°C to +85°C
temperature range.
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+IN
-IN
REF_IN
REF_OUT
SAR
ADS8322
S/H Amp
CDAC
Comparator
Internal
+2.5V Ref
Output Latches
and
3-State
Drivers
BYTE
Parallel
Data
Output
Conversion
and Control
Logic
CLOCK
CONVST
CS
RD
BUSY
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2010, Texas Instruments Incorporated