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Sample and hold circuit using 741 Op-amp

Shyamal796

Mar 19, 2012
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How can i make sample and hold circuit using 741 Op-amp? I am trying to make this circuit for my college project but facing some problem.

Help me in which process i complete the project?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Can you tell us what problems you're facing?
 

john monks

Mar 9, 2012
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You might consider looking at the Nacional Semconductor datasheets for lf11331 or lf356.
 

Harald Kapp

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The 741 is probably not the best selection for an S&H circuit due its comparatively high input current. Consider using a (C)MOS OpAmp or a JFET OpAmp, as John Monks suggested.

In any case you'll need an analog switch (CMOS), too, to decouple the signal from the S&H circuit during the hold phase.

Harald
 

Harald Kapp

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Please google "sample and hold schematic"

Harald
 
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