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ADS1203IRGTT Datasheet(PDF) 1 Page - Texas Instruments |
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ADS1203IRGTT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page SBAS318C − JUNE 2004 − REVISED JANUARY 2008 Motor Control, Current Measurement 1Bit, 10MHz, 2ndOrder, DeltaSigma Modulator ADS1203 ADS 1 2 0 3 A D S 1 2 0 3 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. V DD (BVDD) Second−Order ∆Σ Modulator Interface Circuit Buffer 20MHz RC Oscillator 2.5V Reference Voltage V DD (AVDD) GND (AGND) NOTE: BOLD pins are available only in QFN package. GND (BGND) MDAT MCLK CLKOUT V IN+ V IN− REFIO M0 M1 20k Ω 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. www.ti.com Copyright 2004−2008, Texas Instruments Incorporated All trademarks are the property of their respective owners. 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. www.ti.com |
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