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AC excitation frequency ( chop frequency ) of AD7195

Question asked by PeterT on Jan 15, 2013
Latest reply on Jul 30, 2014 by MaryMc

Hello,

 

how exactly does the  AC excitation frequency ( chop frequency ) on pins 1-4 relate to the output data rate?

 

on page 27 of the datasheet it says:

 

"The AD7195 also scales the ac excitation switching frequency

in accordance with the output data rate. This avoids situations

where the bridge is switched at an unnecessarily faster rate than

the system requires."

 

Is there an equation to calculate the chop frequency?

 

Any advice is appreciated.

Thank you

Peter

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