Patent ID: 6208174
Filing Date: 2001-03-27
Classification: H03F,H03K

Abstract:
An enhanced noise-rejection comparator system that generates an output signal whose state corresponds to the polarity of a differential input signal, comprising:a comparator that generates a comparator signal in response to said differential input signal;an output buffer that generates said output signal in response to a buffer input signal;a current coupler that has first and second coupler portions wherein said first coupler portion generates a differential current that corresponds to said comparator signal and said second coupler portion generates said buffer input signal in response to said differential current;a first supply rail structure that is coupled to deliver a first supply voltage to said first coupler portion and that is isolated from said second coupler portion; anda second supply rail structure that is coupled to deliver a second supply voltage to said second coupler portion and that is isolated from said first coupler portion.