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Altera_Forum's avatar
Altera_Forum
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16 years ago

Filter & decimation implementation on AD7401

Hello everybody! We have chosen the AD7401 Sigma Delta modulator for our project, translated the Verilog code given by the datasheet into VHDL and are now confused about the results of the simu...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Wait a sec, what exactly are you trying to do? Why would you want to measure a constant voltage with such an expensive Σ-Δ modulator? Anyway, we had applied an audio signal (the output of a simple ECM, filtered and amplified) as an input to AD7401 and it worked perfectly.

I suggest you take a closer look at AD7401's datasheet and its Specs, as I suspect that you have overlooked specific details that might be vital for the correct operation of this component.