Hold circuit

Details Hold circuit Hold circuit

1993-11-24

1995-04-18

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 94, G11C 2702, H03K 5159

Patent

active

054081424

ABSTRACT:
A hold circuit has a purpose to provide a hold circuit capable of controlling a hold error of an analog hold in the minimum during transferring. A hold circuit keeps a voltage signal, whose voltage level is compensated by operational amplifiers Amp.sub.1 and Amp.sub.2, at capacitances C.sub.1 and C.sub.2 by two steps, and holding and transferring of voltage data is performed at the different timing. The accuracy is compensated, as well.

REFERENCES:
patent: 3158759 (1964-11-01), Jasper
patent: 3671782 (1972-06-01), Wittlinger et al.
patent: 4546270 (1985-10-01), Cabot
patent: 4591736 (1986-05-01), Hirao et al.
patent: 4717883 (1988-01-01), Browning
patent: 4845382 (1989-07-01), Eouzan et al.
Erdi et al., "A Precision FET-Less Sample and Hold with High Charge-to-Droop Current Ratio," IEEE Journal, vol. SC-13, No. 6, Dec. 1978, pp. 864-873.
Massara, "Synthesis of Low-Pass Forms", The Electrical Engineering Handbook, pp. 674-691.

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