what is the difference between S&H and T&H

[stp400_jp]

Hello all,
I'd like to know the difference between Sample&hold and Track&hold circuit.

thanks

 

[JoannesPaulus]

The T&H follows the signal during the tracking phase while the S&H doesn't. The T&H is usually implemented for higher speed designs.

 

[lladnar23]

Sample & Hold may not reflect the actual signal during the "sample" phase -- the output need only be correct during the "hold" phase. A Track & Hold should represent the input signal accurately during the "track" hold, and remain valid during the "hold" phase.
As JoannesPaulus states above, typical designs are T&H, especially for high speed.

 

[ansonyeap]

Hi all,

can anyone provide me where can I get the information about the S/H and T&H circuit information? information such as the advantages and disadvantages of both circuits, topology available and design consideration when designing both circuits. Thank you in advance.