Help me design a sample-and-hold circuit

[AlvinTan]

hi, i need help for constructing a sample-and-hold together with a bit-to-symbol converter in 1 circuit board.

From what i had understand, a sample-and-hold circuit consist of a input, switch(BJT or Mosfet) and a capacitor.

a bit-to-symbol converter is just a DAC converter.

does any1 have the circuit diagram or any knowledge on how to construct this 2 circuit into 1 circuit board?

Much Thanks in advance.:razz:

 

[leo_o2]

Re: Help needed. Urgent!

I suggest implementing it with IC in stead of PCB level. PCB level will cause too many noise and lead to inaccuracy.

 

[engineerpervez1]

Re: Help needed. Urgent!

Is there any special requirement to build it at components level.
there are many A to D and, D to A converter ICs available to do the job easily.