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ADS1205IRGET bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS1205IRGET bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 22 page SBAS312A − JANUARY 2005 − REVISED APRIL 2005 Two 1Bit, 10MHz, 2ndOrder DeltaSigma Modulators ADS1205 FEATURES D 16-Bit Resolution D 14-Bit Linearity D ±2.5V Input Range at 2.5V D Internal Reference Voltage: 2% D Gain Error: 0.5% D Two Independent Delta-Sigma Modulators D Two Input Reference Buffers D On-Chip 20MHz Oscillator D Selectable Internal or External Clock D Operating Temperature Range: −40 °C to +85°C D QFN-24 (4x4) Package APPLICATIONS D Motor Control D Current Measurement D Industrial Process Control D Instrumentation D Resolver DESCRIPTION The ADS1205 is a two-channel, high-performance, delta-sigma ( ∆Σ) modulator with more than 98dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers in an industrial environment. 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 14 bits can be obtained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1205 is designed for use in high-resolution measurement applications including current measurements, smart transmitters, industrial process control, and resolvers. It is available in a QFN-24 (4x4) package. 2nd−Order ∆Σ Modulator CH A+ AV DD CH A − Output Interface Circuit RC Oscillator 20MHz Out EN Clock Select Divider REFIN A Reference Voltage 2.5V REFOUT OUT A OUT B CLKIN AGND BGND BV DD CLKOUT CLKSEL 2nd−Order ∆Σ Modulator CH B+ CH B − REFIN B www.ti.com Copyright 2005, Texas Instruments Incorporated 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 standard warranty. Production processing does not necessarily include testing of all parameters. All trademarks are the property of their respective owners. |
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Mô tả tương tự - ADS1205IRGET |
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