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What's the difference of Track-and-hold and Sample-and-hold?

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qslazio

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i'm confused with these two terms. Anyone can help me figure it out?
thanks
 

Re: What's the difference of Track-and-hold and Sample-and-h

Hi
Track and Hold - is very different from Sample and Hold:
Track& Hold - the output reflects the input- until indicates to HOLD information - than the output is not changed until the HOLD is released.

Sample&Hold - The output is allways the outcome of a Sample operation - no tracking function

Hope its what you'd expected

Shutter_man
 

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    qslazio

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Re: What's the difference of Track-and-hold and Sample-and-h

shutter_man said:
Hi
Track and Hold - is very different from Sample and Hold:
Track& Hold - the output reflects the input- until indicates to HOLD information - than the output is not changed until the HOLD is released.

Sample&Hold - The output is allways the outcome of a Sample operation - no tracking function

Hope its what you'd expected

Shutter_man
Click to expand...
I've heard that the phase response of these two circuitry is quite different.
 
Re: What's the difference of Track-and-hold and Sample-and-h

Sample&Hold
 

Re: What's the difference of Track-and-hold and Sample-and-h

Track&Hold
 

So, for S/H, the output will be zero in each sample phase while track/hold will not. right?
 

Re: What's the difference of Track-and-hold and Sample-and-h

markty said:
So, for S/H, the output will be zero in each sample phase while track/hold will not. right?
Click to expand...

Sample & Hold will get a staircase waveform.
For an ideal Track&Hold system, when tracking cycle approaches zero, we get S/H.
 

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