[time-nuts] Updated Shera controller

[Richard H McCorkle]

FYI,
The TS272/TS274 have a slew rate of 5.5v/us at unity gain, the max
voltage on the cap is 2.7v in the new design, and the voltage is read
< 10us after sample complete, so the buffer should have time to
stabilize after the sample before being read.

Richard


Bruce wrote:
> Not really its both overkill as it doesnt timestamp, it only measures a
> time interval and underkill in that theres no DAC.
> There are also some concerns about the settling time of the TAC buffer
> opamp which isnt strictly necessary for the lower resolution required in
> this application.
> PPS timestamping only needs a single TAC.
>
> Bruce
>
>
>
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