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AD7781

Part Number	AD7781
Manufacturer	Analog Devices
Description	Low Power Sigma-Delta ADC
Published	Oct 5, 2009
Detailed Description	20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC AD7781 FEATURES Pin-programmable filter response Update rate: 10 Hz ...
Datasheet	AD7781 PDF File

Overview

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC AD7781 FEATURES Pin-programmable filter response Update rate: 10 Hz or 16.
7 Hz Pin-programmable in-amp gain Pin-programmable power-down and reset Status function Internal clock oscillator Internal bridge power-down switch Current 115 μA typical (gain = 1) 330 μA typical (gain = 128) Simultaneous 50 Hz/60 Hz rejection Power supply: 2.
7 V to 5.
25 V −40°C to +105°C temperature range Independent interface power supply Packages 14-lead, narrow body SOIC 16-lead TSSOP 2-wire serial interface (read-only device) SPI compatible Schmitt trigger on SCLK FUNCTIONAL BLOCK DIAGRAM GND AVDD GAIN REFIN(+) REFIN(–) AIN(+) G=1 OR 128 AIN(–) BPDSW INTERNAL ...

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