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Description:CMOS, 16-Bit, 195 kSPS Sigma-Delta ADC
Manufacturer:Analog Devices
Datasheet:PDF (447K).
Click here to download *)

The AD7722 is a complete low power, 16-bit, - ADC. The part operates from a 5 V supply and accepts a differential input voltage range of 0 V to +2.5 V or 1.25 V centered around a common-mode bias. The AD7722 provides 16-bit performance for input bandwidths up to 90.625 kHz. The part provides data at an output word rate of 195.3 kHz. The analog input is continuously sampled by an analog modulator, eliminating the need for external sample-and-hold circuitry. The modulator output is processed by two finite impulse response (FIR) digital filters in series. The on-chip filtering reduces the external antialias requirements to first order, in most cases. The group delay for the filter is 215.5 s, while the settling time for a step input is 431 s. The sample rate, filter corner frequency, and output word rate are set by an external clock that is nominally 12.5 MHz.

Click here to download AD7722ASZ Datasheet
Click here to download AD7722ASZ Datasheet
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