FEATURES
HIGH SNR: 49dB
INTERNAL OR EXTERNAL REFERENCE
OPTION
SINGLE-ENDED OR
DIFFERENTIAL ANALOG INPUT
PROGRAMMABLE INPUT RANGE:
1Vp-p /2Vp-p
LOW POWER: 275mW
LOW DNL: 0.35LSB
SINGLE +5V SUPPLY OPERATION
SSOP-20 PACKAGE

APPLICATIONS
MEDICAL IMAGING
VIDEO DIGITIZING
COMPUTER SCANNERS
COMMUNICATIONS
DISK-DRIVE CONTROL

DESCRIPTION
The ADS831 is a pipeline, CMOS Analog-to-Digital (A/D) converter
that operates from a single +5V power supply. This converter
provides excellent performance with a single-ended input
and can be operated with a differential input
for added spurious performance. This high performance converter
includes an 8-bit quantizer, high bandwidth
track/hold, and a high accuracy internal reference. It also allows for
the user to disable the internal reference and utilize external
references. This external reference option provides excellent gain
and offset matching when used in multi-channel applications or in
applications where DC full scale range adjustment is required.
The ADS831 employs digital error correction techniques to provide
excellent differential linearity for demanding imaging applications.
Its low distortion and high SNR give the extra margin
needed for medical imaging, communications, video, and test
instrumentation.
The ADS831 is specified at a maximum sampling frequency of
80MHz and a single-ended input range of 1.5V to 3.5V. The
ADS831 is available in an SSOP-20 package and is pin-for-pin
compatible with the 8-bit, 60MHz ADS830.