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ADS1204 Arkusz danych(PDF) 1 Page - Texas Instruments |
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ADS1204 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 29 page 1 FEATURES DESCRIPTION APPLICATIONS CH A+ AVDD CHA- Output Interface Circuit RC Oscillator 20MHz Out EN Clock Select Divider REFIN A Reference Voltage 2.5V REFOUT OUTA OUT B OUT C OUT D CLKIN AGND BGND BVDD CLKOUT CLKSEL CHB+ CHB- REFINB CHC+ CHC- REFINC 2nd-Order DS Modulator CHD+ CHD- REFIND 2nd-Order DS Modulator 2nd-Order DS Modulator 2nd-Order DS Modulator ADS1204 www.ti.com........................................................................................................................................... SBAS301C – OCTOBER 2003 – REVISED FEBRUARY 2009 Four 1-Bit, 10MHz, 2nd-Order Delta-Sigma Modulators 2 • 16-Bit Resolution The ADS1204 is a four-channel, high-performance device, with four delta-sigma ( ΔΣ) modulators with • 14-Bit Linearity 100dB dynamic range, operating from a single +5V • Resolution/Speed Trade-Off: 10-Bit Effective supply. The differential inputs are ideal for direct Resolution with 10 µs Signal Delay (12-Bit with connection to transducers in an industrial 19 µs) environment. With the appropriate digital filter and • ±2.5V Input Range at 2.5V modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no • Internal Reference Voltage: 2% missing code. Effective resolution of 12 bits can be • Gain Error: 0.5% obtained with a digital filter data rate of 160kHz at a • Four Independent Delta-Sigma Modulators modulator rate of 10MHz. The ADS1204 is designed for use in medium- to high-resolution measurement • Four Input Reference Buffers applications including current measurements, smart • Onboard 20MHz Oscillator transmitters, industrial process control, weight scales, • Selectable Internal or External Clock chromatography, and portable instrumentation. It is available in a QFN-32 (5×5) package. • Operating Temperature Range: –40°C to +105°C • QFN-32 (5×5) Package • Motor Control • Current Measurement • Industrial Process Control • Instrumentation • Smart Transmitters • Portable Instruments • Weight Scales • Pressure Transducers 1 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2003–2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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