Precise, high speed CMOS track (sample)/hold circuits

Details Precise, high speed CMOS track (sample)/hold circuits Precise, high speed CMOS track (sample)/hold circuits

1989-05-31

1991-07-30

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307257, G11C 2702

Patent

active

050362194

ABSTRACT:
A precise, high speed CMOS track (sample)/hold circuit uses a first circuit leg including four Schottky barrier diodes configured to form a Wheatstone bridge, a second leg with a single n-channel MOS transistor, an essentially constant current source having MOS transistors, a capacitor for holding output signal, and reverse biasing circuitry having MOS transistors for selectively reverse biasing the four diodes. An analog input signal is applied to the cathode of the first diode and to the anode of the second diode. An output signal of the same magnitude and polarity as the input signal is generated at an output terminal (the cathode of the third diode and the anode of the fourth diode) of the circuit when current flows through the first circuit leg. When the current flowing through the first circuit leg is switched to the second circuit leg, the capacitor, which is connected to an output terminal of the circuitry, holds the generated output signal level and the reverse biasing circuitry reverse biases all of the diodes so as to isolate the capacitor from all other components of the circuit.

REFERENCES:
patent: 3597633 (1971-08-01), Hirano et al.
patent: 3721829 (1973-03-01), Benson
patent: 3840754 (1974-10-01), Okada et al.
patent: 3973142 (1976-08-01), Hill
patent: 4518921 (1985-05-01), Logan
patent: 4728819 (1988-03-01), Vu

Affiliated with

Also associated with

Rating

Precise, high speed CMOS track (sample)/hold circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Precise, high speed CMOS track (sample)/hold circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precise, high speed CMOS track (sample)/hold circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1543853