Bandgap threshold circuit with hysteresis

Details Bandgap threshold circuit with hysteresis Bandgap threshold circuit with hysteresis

1989-05-08

1991-05-07

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072961, 3072966, 307310, 307350, 323313, 323315, 323907, H03K 301, H03K 326, H03K 329, G05F 316

Patent

active

050139347

ABSTRACT:
A combined CMOS/linear circuit employs a voltage reference circuit to provide a temperature compensated V.sub.REF output. The circuit includes means for switching the reference circuit off and on in response to the signal on an enable terminal. The voltage reference circuit includes a current mirror feedback which is positive in nature to provide a controlled hysteresis action. This provides noise immunity for the enable input. A digital output indicator is included to indicate the state of the reference circuit.

REFERENCES:
patent: 4677369 (1987-06-01), Bowers et al.
patent: 4701639 (1987-10-01), Stanojevic
patent: 4808908 (1989-02-01), Lewis et al.
Paul Brokaw, "A Simple Three-Terminal IC Bandgap Reference", IEEE Journal of Solid-State Circuits, vol. SC9, No. 6, Nov. 1974.

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