Seeking VERY high speed Track and hold amplifiers for A-D?

Question

Designing Very High Speed and High Dynamic Range A-D. Need to find very fast Sample and hold or Track and Hold amplifiers and very high speed 32 bit integer or 32 bit Floating Point Adders and FIFOs ... Goal is 5 Giga sample 24 bit Analog to Digital Converter. Thanks, Bob

Answer 1

you are talking about less than 100 ps.

I don't think that is possible.