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variable gain using digital potentiometer

Question asked by avinash on Jan 15, 2012
Latest reply on Jan 20, 2012 by harryh

hi,

 

i was planning to make my opamp ADA4817 a variable gain amplifier for controlling the amplitude.

could i use a digital potentiometer for this purpose.

my bandwidth is dc to 100MHz.

does digital potentiometer affect the THD of signal,if so what will be the effect.

 

 

thanks

avinash

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