AD7719BRUZ-REEL7
数据手册.pdfADI(亚德诺)
主动器件
IC ADC 16Bit 24Bit DUAL 28TSSOP
Product Details
The AD7719 is a complete analog front-end for low frequency measurement applications. It contains two high-resolution sigma delta ADCs, switchable matched excitation current sources, low-side power switches, digital I/O port and temperature sensor. The 24-bit main channel with PGA accepts fully differential, unipolar and bipolar input signal ranges from REFIN1/128 to REFIN1. Signals can be converted directly from a transducer without the need for signal conditioning. The 16-bit aux channel does not have a PGA and has an input signal range of REFIN2 or REFIN2/2.
### Features and Benefits
HIGH RESOLUTION Σ-Δ ADCS
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- 2 Independent ADCs 16- and 24-Bit Resolution
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- Factory-Calibrated Field Calibration Not Required
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- Output Settles in 1 Conversion Cycle Single Conversion Mode
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- Programmable Gain Front End
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- Simultaneous Sampling and Conversion of 2 Signal Sources
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- Separate Reference Inputs for Each Channel
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- Simultaneous 50 Hz and 60 Hz Rejection at 20 Hz Update Rate
ISOURCE SELECT™
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- 24-Bit No Missing Codes—Main ADC
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- 13-Bit p-p Resolution @ 20 Hz, 20 mV Range
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- 18-Bit p-p Resolution @ 20 Hz, 2.56 V Range
INTERFACE
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- 3-Wire Serial
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- SPI®, QSPI™, MICROWIRE™, and DSP Compatible
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- Schmitt Trigger on SCLK