Programmable analog switch

Details Programmable analog switch Programmable analog switch

1996-09-20

1998-04-14

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

327278, H03K 17687

Patent

active

057397163

ABSTRACT:
A programmable analog switch which is capable of varying a resistance value by controlling the number of turned-on transistors included in a resistance device according to a program, includes first and second transmission control units for logically operating externally applied control signals and generating transmission control signals, first and second variable resistance control units for varying the resistance encountered by an input analog signal in accordance with the control signals, and a transmission unit connected to the resistance device and an attenuated analog transmission gate for transmitting the attenuated analog signal to the analog transmission gate in accordance with the transmission control signals outputted from the first and second transmission control units.

REFERENCES:
patent: 4899071 (1990-02-01), Morales
patent: 5332916 (1994-07-01), Hirai
patent: 5592116 (1997-01-01), Bedouani

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