Part # AD7791 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD7791 Low Power Buffered 24-Bit Sigma-Delta ADC Data Sheet (Rev. 0)

Part Details:

Low Power, Buffered 24-Bit Sigma-Delta ADC AD7791 FEATURES FUNCTIONAL BLOCK DIAGRAM Power GND V REFIN(+) REFIN(­) DD Supply: 2.5 V to 5.25 V operation Normal: 75 µA max VDD CLOCK Power-down: 1 µA max RMS noise: 1.1 µV at 9.5 Hz update rate AIN(+) DOUT/RDY 19.5-bit p-p resolution (22 bits effective resolution) - BUF ADC DIN AIN(­) SERIAL Integral nonlinearity: 3.5 ppm typical INTERFACE SCLK Simultaneous 50 Hz and 60 Hz rejection CS AD7791 Internal clock oscillator GND Rail-to-rail input buffer 04227-0-001 VDD monitor channel Figure 1. Temperature range: ­40°C to +105°C 10-lead MSOP GENERAL DESCRIPTION INTERFACE The AD7791 is a low power, complete analog front end for 3-wire serial low frequency measurement applications. It contains a low SPI®, QSPITM, MICROWIRETM, and DSP compatible noise 24-bit - ADC with one differential input that can be buffered or unbuffered. Schmitt trigger on SCLK The device operates from an internal clock. Therefore, the user APPLICATIONS does not have to supply a clock source to the device. The output

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AD7791.pdf Datasheet