kickback noise
Here's the paper:
Low kickback noise techniques for CMOS latched comparators
Figueiredo, P.M. Vital, J.C.
Chipidea Microelectron.,, Porto Salvo, Portugal
This paper appears in: Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Publication Date: 23-26 May 2004
On page(s): I - 537-40 Vol.1
Abstract:
The latched comparator is utilized in virtually all analog-to-digital converter architectures. It uses a positive feedback mechanism to regenerate the analog input signal into a full-scale digital level. Such high voltage variations in the regeneration nodes are coupled to the input voltage - kickback noise. This paper reviews existing solutions to minimize the kickback noise and proposes two new ones. HSPICE simulations verify the effectiveness of our techniques.