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AD7785

Analog Devices
Part Number AD7785
Manufacturer Analog Devices
Description 20-Bit ADC
Published Jun 20, 2007
Detailed Description 3-Channel, Low Noise, Low Power, 20-Bit ∑-Δ ADC with On-Chip In-Amp and Reference AD7785 FEATURES Up to 20 bits effecti...
Datasheet PDF File AD7785 PDF File

AD7785
AD7785

Overview
3-Channel, Low Noise, Low Power, 20-Bit ∑-Δ ADC with On-Chip In-Amp and Reference AD7785 FEATURES Up to 20 bits effective resolution RMS noise 40 nV @ 4.
17 Hz 85 nV @ 16.
7 Hz Current: 400 μA typical Power-down: 1 μA maximum Low noise programmable gain instrumentation amp Band gap reference with 4 ppm/°C drift typical Update rate: 4.
17 Hz to 470 Hz 3 differential inputs Internal clock oscillator Simultaneous 50 Hz/60 Hz rejection Programmable current sources On-chip bias voltage generator Burnout currents Power supply: 2.
7 V to 5.
25 V –40°C to +105°C temperature range Independent interface power supply 16-lead TSSOP package Interface www.
DataSheet4U.
com 3-wire serial SPI®, QSPI™, MICROWIRE™, and DSP compatible Schmitt trigger on SCLK Industrial process control Instrumentation Portable instrumentation Blood analysis Smart transmitters Liquid/gas chromatography 6-digit DVM GENERAL DESCRIPTION The AD7785 is a low power, low noise, complete analog front end for high precision measurement ...


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