ADS8383 Datasheet, PDF (1/29 Pages) Texas Instruments – 18-BIT, 500-kHz, UNIPOLAR INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE

ADS8383
SLAS005B – DECEMBER 2002 – REVISED MAY 2003
18-BIT, 500-kHz, UNIPOLAR INPUT, MICROPOWER SAMPLING
ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE
FEATURES
D 500-kHz Sample Rate
D 18-Bit NMC Ensured Over Temperature
D Zero Latency
D Low Power: 110 mW at 500 kHz
D Unipolar Input Range
D Onboard Reference Buffer
D High-Speed Parallel Interface
D Wide Digital Supply
D 8-/16-/18-Bit Bus Transfer
D 48-Pin TQFP Package
APPLICATIONS
D Medical Instruments
D Optical Networking
D Transducer Interface
D High Accuracy Data Acquisition Systems
D Magnetometers
DESCRIPTION
The ADS8383 is an 18-bit, 500 kHz A/D converter. The
device includes a 18-bit capacitor-based SAR A/D
converter with inherent sample and hold. The ADS8383
offers a full 18-bit interface, a 16-bit option where data is
read using two read cycles or an 8-bit bus option using
three read cycles.
The ADS8383 is available in a 48-lead TQFP package and
is characterized over the industrial –40°C to 85°C
temperature range.
+IN +
_
–IN
REFIN
SAR
CDAC
Comparator
Clock
Output
Latches
and
3-State
Drivers
BUS 18/16
BYTE
18-/16-/8-Bit
Parallel DATA
Output Bus
Conversion
and
Control Logic
CONVST
BUSY
CS
RD
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  2002–2003, Texas Instruments Incorporated