Monady
Advanced Member level 4
SW problem
Hi dear all friends
I want to get a sample of input and hold it, then use of that sampled voltage and transfer it to other parts of circuit with some switches. For example I want to get sample of input in t1=1ns, then hold it till t2=7ns. Between t1 and t2 this hold voltage must transfer to other parts with 6 switches; first switch works in t=2ns, second SW works in t=3ns,…..
But charge injections of switches degrade hold voltage. I used of dummy SW, differential topology, but neither helped me.(Because I’m working in high frequency thus I used of simple SW and capacitor(differential topology) for track and hold block).
I would be appreciated for any suggestion.
Hi dear all friends
I want to get a sample of input and hold it, then use of that sampled voltage and transfer it to other parts of circuit with some switches. For example I want to get sample of input in t1=1ns, then hold it till t2=7ns. Between t1 and t2 this hold voltage must transfer to other parts with 6 switches; first switch works in t=2ns, second SW works in t=3ns,…..
But charge injections of switches degrade hold voltage. I used of dummy SW, differential topology, but neither helped me.(Because I’m working in high frequency thus I used of simple SW and capacitor(differential topology) for track and hold block).
I would be appreciated for any suggestion.
