Digital regenerative comparator

Details Digital regenerative comparator Digital regenerative comparator

1994-06-27

1996-05-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327206, 327217, H03K 5153

Patent

active

055149871

ABSTRACT:
A regenerative comparator provides the capability of operating faster than a traditional regenerative comparator and the hysteresis points can be individually set and fine tuned. The regenerative comparator includes a current mirror having an input transistor connected to first and second output transistors, a first and second reference current sources which are set at a first and second predetermined level, respectively. An outputs of the first and second output transistors are provided to the latch through an inverter. The output of the latch transitions from a first logical output state to a second logical output state when an input current increases from a magnitude less than the first predetermined level to a magnitude greater than the first predetermined level.

REFERENCES:
patent: 4408132 (1983-10-01), Kuwahara
patent: 4786825 (1988-11-01), O'Shaughnessy et al.
patent: 4977336 (1990-12-01), Martiny
patent: 5170076 (1992-12-01), Smith
patent: 5200654 (1993-04-01), Archer
"Halbleiter-Schaltungstechnik", 1991, 9th edition, Springer Verlag, Berlin, pp. 177 & 185.

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