Differential comparator cirucit

Details Differential comparator cirucit Differential comparator cirucit

1994-10-14

1996-10-08

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

H03M 112

Patent

active

055635989

ABSTRACT:
A differential comparator circuit for an Analog-to-Digital Converter (ADC) or other application includes a plurality of differential comparators and a plurality of offset voltage generators. Each comparator includes first and second differentially connected transistor pairs having equal and opposite voltage offsets. First and second offset control transistors are connected in series with the transistor pairs respectively. The offset voltage generators generate offset voltages corresponding to reference voltages which are compared with a differential input voltage by the comparators. Each offset voltage is applied to the offset control transistors of at least one comparator to set the overall voltage offset of the comparator to a value corresponding to the respective reference voltage. The number of offset voltage generators required in an ADC application can be reduced by a factor of approximately two by applying the offset voltage from each offset voltage generator to two comparators with opposite logical sense such that positive and negative offset voltages are produced by each offset voltage generator.

REFERENCES:
patent: 5194866 (1993-03-01), Imaizumi et al.
patent: 5402128 (1995-03-01), Kusumoto et al.

Affiliated with

Also associated with

Rating

Differential comparator cirucit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential comparator cirucit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential comparator cirucit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60560