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ADS1203

Texas Instruments
Part Number ADS1203
Manufacturer Texas Instruments
Description Delta-Sigma Modulator
Published Jul 8, 2020
Detailed Description www.ti.com A D S1 2 0 3 ADS1 2 03 ADS1203 SBAS318C − JUNE 2004 − REVISED JANUARY 2008 Motor Control, Current Measure...
Datasheet PDF File ADS1203 PDF File

ADS1203
ADS1203

Overview
www.
ti.
com A D S1 2 0 3 ADS1 2 03 ADS1203 SBAS318C − JUNE 2004 − REVISED JANUARY 2008 Motor Control, Current Measurement 1ĆBit, 10MHz, 2ndĆOrder, DeltaĆSigma Modulator FEATURES D 16-Bit Resolution D 14-Bit Linearity D ±250mV Input Range with Single +5V Supply D 1% Internal Reference Voltage D 1% Gain Error D Flexible Serial Interface with Four Different Modes D Implemented Twinned Binary Coding as Split-Phase or Manchester Coding for One-Line Interfacing D Operating Temperature Range: −40°C to +125°C APPLICATIONS D Motor Control D Current Measurement D Industrial Process Control D Instrumentation D Smart Transmitters DESCRIPTION The ADS1203 is a delta-sigma (∆Σ) modulator with a 95dB dynamic range, operating from a single +5V supply.
The differential inputs are ideal for direct connection 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.
An effective resolution of 14 bits or SNR of 85dB (typical) can be maintained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz.
The ADS1203 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, and industrial process control.
The ADS1203 is available in TSSOP-8 and QFN-16 (3x3) packages.
VIN+ VIN− REFIO VDD (AVDD) Second−Order ∆Σ Modulator VDD (BVDD) Buffer 20MHz RC Oscillator Interface Circuit 20kΩ 2.
5V Reference Voltage MDAT MCLK CLKOUT M0 M1 GND (AGND) GND (BGND) NOTE: BOLD pins are available only in QFN package.
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 spec...


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