Comparator circuit

Details Comparator circuit Comparator circuit

2005-09-06

2005-09-06

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S064000

Reexamination Certificate

active

06940316

ABSTRACT:
In order to provide a comparator circuit without generating a malfunction, the comparator circuit according to the present invention may comprise a comparator circuit including a differential amplification circuit having a differential pair transistor (M1, M2) for inputting a signal as an object of comparison, and a current mirror load circuit (M3, M4, M5, M6); a latch circuit having inversion amplifiers that are configured so that an input of one amplifier becomes an input of other amplifier so as to amplify a differential output signal outputted from the current mirror load circuit in accordance with a magnitude relation of the signal as an object of comparison; an equalization transistor (M9) for equalizing a signal of the differential amplification circuit; a delay circuit (M13, M14,M15, M16) for generating a signal to delay a control signal to be inputted in a control electrode of the equalization transistor; and a control transistor (M10) for inputting an output signal of the delay circuit in the control electrode as a control signal to make the latch circuit into an active status and a non-active status.

REFERENCES:
patent: 5668765 (1997-09-01), Ang
patent: 5696724 (1997-12-01), Koh et al.
patent: 5901087 (1999-05-01), Pascucci
patent: 6008673 (1999-12-01), Glass et al.
patent: 6462590 (2002-10-01), Warwar
patent: 6788112 (2004-09-01), Chan et al.
patent: 6833739 (2004-12-01), Isoda
patent: 05-67950 (1993-09-01), None
patent: 2002-237743 (2002-08-01), None

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