Selector circuit for the switching over of analog signals with a

Details Selector circuit for the switching over of analog signals with a Selector circuit for the switching over of analog signals with a

1999-03-05

2000-10-17

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Converging with plural inputs and single output

327407, 327408, H03K 1762

Patent

active

061337773

ABSTRACT:
The selector circuit is particularly well suited to the switching over of two voltages VPP1 and VPP2, greater than the supply voltage Vcc of an integrated circuit without a priori knowledge of which of the two voltages is the highest. The selector circuit includes first and second switch circuits coupled by first and second MOS transistors whose well is biased by the output voltage of the selector circuit.

REFERENCES:
patent: Re36179 (1999-10-01), Shimoda
patent: 5021680 (1991-06-01), Zaw Win et al.
patent: 5371705 (1994-12-01), Nakayama et al.
patent: 5925905 (1999-07-01), Hanneberg et al.
patent: 5963077 (1999-10-01), Kim
S. Tanaka et al., "A Programmable 256K CMOS EPROM With On-Chip Test Circuits," IEEE International Solid State Circuits Conference, Feb. 23, 1984, pp. 148-149.

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