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ADS1202

Burr-Brown Corporation
Part Number ADS1202
Manufacturer Burr-Brown Corporation
Description Delta-Sigma Modulator
Published Mar 23, 2005
Detailed Description ADS1202 SBAS275B – DECEMBER 2002 – REVISED JULY 2004 Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma M...
Datasheet PDF File ADS1202 PDF File

ADS1202
ADS1202

Overview
ADS1202 SBAS275B – DECEMBER 2002 – REVISED JULY 2004 Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator FEATURES q 16-BIT RESOLUTION q 13-BIT LINEARITY q RESOLUTION/SPEED TRADE-OFF: 10-Bit Effective Resolution with 20µs Signal Delay (12-bit with 77µs) q ±250mV INPUT RANGE WITH SINGLE 5V SUPPLY q 2% INTERNAL REFERENCE VOLTAGE q 2% GAIN ERROR q FLEXIBLE SERIAL INTERFACE WITH FOUR DIFFERENT MODES q IMPLEMENTED TWINNED BINARY CODING AS SPLIT PHASE OR MANCHESTER CODING FOR ONE LINE INTERFACING q OPERATING TEMPERATURE RANGE: –40°C to +85°C DESCRIPTION The ADS1202 is a precision, 80dB dynamic range, deltasigma (∆Σ) modulator operating from a single +5V supply.
The differential inputs are ideal for direct connections to transducers or low-level signals.
With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit Analog-to-Digital (A/D) conversion with no missing codes.
Effective resolution of 12 bits can be maintained with a digital filter bandwidth of 10kHz at a modulator rate of 10MHz.
The ADS1202 is designed for use in medium resolution measurement applications including current measurements, smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation.
It is available in a TSSOP-8 package.
APPLICATIONS q MOTOR CONTROL q CURRENT MEASUREMENT VIN+ VIN– q INDUSTRIAL PROCESS CONTROL q INSTRUMENTATION q SMART TRANSMITTERS VDD q PORTABLE INSTRUMENTS GND q WEIGHT SCALES q PRESSURE TRANSDUCERS 2nd-Order ∆∑ Modulator Buffer RC Oscillator 20MHz Reference Voltage 2.
5V Interface Circuit MDAT MCLK M0 M1 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 st...


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