AFE5801 EVM

Emily Enlow

What are jumpers P15 and P14 controlling? They are not discussed in the user guide.

0 Chuck Smyth over 8 years ago

Emily,

This is for providing an external bias to the DUT. Please see the User Guide, pg.21 at the top.

Thanks, Chuck

0 Emily Enlow over 8 years ago in reply to Chuck Smyth

How do you apply an external bias (using the EVM)? Does it replace the internal bias (1.6V)? What is the range of an acceptable external bias?

0 Emily Enlow over 8 years ago in reply to Chuck Smyth

Chuck,

Any update on how to apply an external bias and what the limitations of the bias are?

Emily

0 Chuck Smyth over 8 years ago in reply to Emily Enlow

Emily, my previous answer was incorrect. This in output used for biasing the analog input if you want to use DC coupling.

0 Emily Enlow over 8 years ago in reply to Chuck Smyth

Hi Chuck,

So is there no way to change the internal bias from 1.6V to something lower? I am working with a signal that has a Vref of around 1.2V.

Emily

Data converters forum