Comparator with small signal suppression circuitry

Details Comparator with small signal suppression circuitry Comparator with small signal suppression circuitry

1997-08-26

1999-04-06

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 79, 330 9, H03K 522

Patent

active

058923756

ABSTRACT:
A comparator circuit has first and second inputs and an output and includes means for operating the comparator in alternate autozero and comparator phases. During an autozero phase, the inputs of the comparator are clamped to a reference potential and during a compare phase, input signals are applied to the input of the comparator. Control signals are applied to the inputs of the comparator during a portion of the compare phase. The control signals determine the state of the comparator output when the input signals applied to the inputs of the comparator are below a predetermined level.

REFERENCES:
patent: 4988900 (1991-01-01), Fensch
patent: 5493246 (1996-02-01), Anderson
patent: 5525920 (1996-06-01), Rakers et al.
patent: 5680072 (1997-10-01), Vulih et al.
patent: 5736895 (1998-04-01), Yu et al.

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