AD7731: FAQ

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AD7731: Continuous Read Mode and Conversion Mode

Question In our application the AD7731 does not stop "continuous conversion mode". Is it enough to write a 1/1 to RW1/RW2 into communication register? (The RDY_ pin signals a valid results always after…
AD7731: PCB join analog and digital ground planes

Question I am designing a PCB with 7 (seven!) AD7731 a/d chips and am not sure which is the best point or points to join analogue and digital ground planes. Is it:- a) one join at the 4th 7731 ? b…
AD7731: Sinking Current

Q 1 - I cannot see, from the documentation, what is the maximum supply/sinking current on the digital pins (DIN, DOUT, SCK...) of the circuit. I wish to interface the AD7731 to th microcontroller board…
On the datasheet I get the impression that the 'CHOP' variable affects the output rate of the sinc3 filter, and therefore the frequency response.

Q 1) On the datasheet I get the impression that the 'CHOP' variable affects the output rate of the sinc3 filter, and therefore the frequency response. So if SF = 512 and CHOP = 0, the response is as…

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