Switching circuitry as for a flash A/D converter

Details Switching circuitry as for a flash A/D converter Switching circuitry as for a flash A/D converter

1981-11-30

1984-05-15

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

307450, 307451, 340347M, H03K 1302, H03K 13175

Patent

active

044491182

ABSTRACT:
A flash type A/D converter has a plurality of transistor switch means for alternately connecting respective ones of a plurality of reference potentials or input signal to a plurality of summing capacitors each serially connected to a self biased inverter (comparator) circuit. Certain ones of the switches are configured to operate in the source follower mode to preclude excessive capacitor discharging when extremes of input signal are applied. This reduces the current required to recharge the capacitors by the reference potential source and tends to limit loading affects on the reference source. In addition certain ones of the switch transistors have their turn on or threshold potentials tailored to effectively reduce feedthrough between the respective switch control electrodes and the capacitor-switch interconnection.

REFERENCES:
patent: 3676702 (1972-07-01), McGrogan, Jr.
"CMOS/SOS Flash ADC Speeds on Low Power for Low Cost", M. Glincman, Electronic Design, Nov. 22, 1980, pp. 227-231.

Affiliated with

Also associated with

Rating

Switching circuitry as for a flash A/D converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching circuitry as for a flash A/D converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching circuitry as for a flash A/D converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-848083