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  1. G

    Choice of op.amp. model

    Thanks for your help.  ;) Somehow, I face another problem dealing with my TC9400 :-\. It is a frequency to voltage IC from MICROCHIP. I had inputed the frequency supply at pin 11, and the result get at pin12 is very low. The frequency input is 4k, 10k, 20k, 40k; I get more or less around...
  2. G

    Choice of op.amp. model

    Hi. I am currently working on FTV projects. I am using TC9400 to convert frequency to voltage and TL071 to get rid of ripple and ADC output. I am using single supply for both case. May I know how should I modify the TL071 to be 10v-GND? Is there any additional circuit? ??? Attach on left...
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