Switch for use on an integrated circuit

A switching circuit for selectively coupling a first power supply (Vpp) to a power bus (24) includes a first input terminal (33) for connection to the first power supply and a means (34) for coupling said first input terminal to a first node (a). A first transistor (36) has a first source/drain regi...

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Bibliographic Details
Main Authors DESAI, CHIRAG A, TRUONG, PHAT C, SCHRECK, JOHN F
Format Patent
LanguageEnglish
French
German
Published 25.06.1997
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
PHYSICS
PULSE TECHNIQUE
SEMICONDUCTOR DEVICES
STATIC STORES
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Summary:A switching circuit for selectively coupling a first power supply (Vpp) to a power bus (24) includes a first input terminal (33) for connection to the first power supply and a means (34) for coupling said first input terminal to a first node (a). A first transistor (36) has a first source/drain region coupled to the first node and a second source/drain region coupled to the power bus (24). The first transistor is on in response to a first control signal applied to its gate to couple the first node to the power bus. A bias circuit (52, 54, &56) is coupled to the substrate (b) of the first transistor to prevent forward biasing of a junction between its substrate and its second source/drain region when the first transistor is on.
Bibliography:Application Number: EP19920101715