[time-nuts] OP-Amps for 10MHz distribution...?
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Wed Feb 29 06:22:43 UTC 2012
For the OPA653 the noninverting configuration has lower distortion at
least for 2V pp outputs.
Bruce
gary wrote:
> Just a FYI, some op amps have lower distortion in inverting mode than
> as a follower. This is not intuitively obvious since a follow has
> maximum feedback, which would imply the best linearity. However the
> distortion as a follower is due to the common mode rejection of the op
> amp. That is the inverter has the front end differential pair at a
> virtual ground while the follower moves the differential pair with the
> signal.
>
>
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