Sample-and-hold circuit including operational amplifier as an in

Details Sample-and-hold circuit including operational amplifier as an in Sample-and-hold circuit including operational amplifier as an in

1998-02-05

2000-03-07

Nuton, My-Trang

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

G11C 2702

Patent

active

06034556&

ABSTRACT:
An operational amplifier charges a charge storage capacitor in response to an input signal supplied to a non-inverting input terminal. When a switching signal is low, NPN transistors disposed in an output open circuit are on. Therefore, output transistors disposed in a push-pull circuit are off and the output signal is cut off. Further, in this situation, the potential of a phase compensation capacitor is held because AC coupling of the phase compensation capacitor does not occur.

REFERENCES:
patent: 5047666 (1991-09-01), Astegher et al.
patent: 5289278 (1994-02-01), Bird
patent: 5471171 (1995-11-01), Itakura et al.

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