After the RESET pulse, the AD7656 needs a CONVST pulse to initiate a conversion.
How many second is needed from RESET to CONVST?
There is no timing spec for the time between RESET and CONVST for the AD7656. The reset high pulse should be typically 100 ns wide. After this, the AD7656 needs to see a valid CONVST pulse to initiate a conversion; this should consist of a high-to-low CONVST edge followed by a low-to-high CONVST edge. The CONVST signal should be high during the RESET pulse. You could pulse the CONVST low right after the RESET pulse
I am looking into this. I'll get back to you as soon as possible.
Thank you for your quick response.
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