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Design >> Analog Design >> 1 Second S/H
https://designers-guide.org/forum/YaBB.pl?num=1113730475

Message started by Erez Sarig on Apr 17^th, 2005, 2:34am

Title: 1 Second S/H
Post by Erez Sarig on Apr 17^th, 2005, 2:34am

Hello,
I am looking for a 1 second Sample & Hold.
All known S/H will not hold 1 sec due to leakages

Thanks,
Erez

Title: Re: 1 Second S/H
Post by sheldon on Apr 17^th, 2005, 7:15pm

Erez,

Could you provide any information about the target droop
and other parameters, e.g., target process, etc.? A quick calculation
shows that 1pA of leakage and 1pF hold capacitor give a slew
rate of 1V/s. Seems like the target is difficult to achieve but not
impossible.

Best Regards,

Sheldon