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ADS7862

Part Number	ADS7862
Manufacturer	Burr-Brown Corporation
Description	Dual 500kHz/ 12-Bit/ 2 2 Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER
Published	Mar 23, 2005
Detailed Description	ADS7862 ® ADS7862 SBAS101B – JANUARY 1998 – REVISED AUGUST 2005 Dual 500kHz, 12-Bit, 2 + 2 Channel Simultaneous Sampli...
Datasheet	ADS7862 PDF File

Overview

ADS7862 ® ADS7862 SBAS101B – JANUARY 1998 – REVISED AUGUST 2005 Dual 500kHz, 12-Bit, 2 + 2 Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q 4 INPUT CHANNELS q FULLY DIFFERENTIAL INPUTS q 2µs TOTAL THROUGHPUT PER CHANNEL q GUARANTEED NO MISSING CODES q PARALLEL INTERFACE q 1MHz EFFECTIVE SAMPLING RATE q LOW POWER: 40mW APPLICATIONS q MOTOR CONTROL q MULTI-AXIS POSITIONING SYSTEMS q 3-PHASE POWER CONTROL DESCRIPTION The ADS7862 is a dual 12-bit, 500kHz analog-to-digital converter (A/D) with 4 fully differential input channels grouped into two pairs for high speed simultaneous signal acquisition.
Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter.
This provides excellent common-mode rejection of 80dB at 50kHz, which is important in high noise environments.
The ADS7862 offers parallel interface and control inputs to minimize software overhead.
The output data for each channel is available as a 12-bit word.
The ADS7862 is offered in an TQFP-32 package and is fully specified over the –40°C to +85°C operating range.
CH A0+ CH A0– CH A1+ CH A1– REFIN REFOUT CH B0+ CH B0– MUX CH B1+ CH B1– MUX S/H Amp CDAC SAR COMP Internal 2.
5V Reference S/H Amp CDAC COMP SAR Interface Conversion and Control A0 CLOCK CS RD BUSY CONVST Output Registers Data Output 12 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.
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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.
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