ADS831

ADS831 ¤ ADS831 SBAS087A – MAY 2001 TM 8-Bit, 80MHz Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q HIGH SNR: 49dB q INTERNAL OR EXTERNAL REFERENCE OPTION q SINGLE-ENDED OR DIFFERENTIAL ANALOG INPUT q PROGRAMMABLE INPUT RANGE: 1Vp-p /2Vp-p q LOW POWER: 275mW q LOW DNL: 0.35LSB q SINGLE +5V SUPPLY OPERATION q SSOP-20 PACKAGE APPLICATIONS q MEDICAL IMAGING q VIDEO DIGITIZING q COMPUTER SCANNERS q COMMUNICATIONS q DISK-DRIVE CONTROL +VS ADS831 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...