AnsweredAssumed Answered

AD7401 Bitstream

Question asked by Michael72 on Mar 18, 2013
Latest reply on Mar 22, 2013 by ShaneO

Hello Together,


we use the AD7401A for current measurement of our power inverter. The converters are supplied with a bootstrap circuit with the reference on the phase they are measured.An FPGA does the SIN3 Filter.

Everything works fine!

But now we found that we have a problem at startup. Sometimes the data output comming from the converter stuckes at high level.

So I´ve some questions about the clock-input: - Is it allowed to let it always activ, even when the converter is not supplied on the HV-side?

- Is there a minimum time we have to wait after power up the device on the HV-side, until the data-output is valid?


Thank´s in advance for help.