DIGITAL/ANALOG CONVERTER

PURPOSE: To improve noise resistance by arranging a selector circuit consisting of switch elements for selectively outputting potential outputted from respective nodes of plural resistor elements on one side of an R string. CONSTITUTION: A D/A converter is provided with an R string 1 formed between...

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Bibliographic Details
Main Author OBATA HIROYUKI
Format Patent
LanguageEnglish
Published 25.06.1996
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PURPOSE: To improve noise resistance by arranging a selector circuit consisting of switch elements for selectively outputting potential outputted from respective nodes of plural resistor elements on one side of an R string. CONSTITUTION: A D/A converter is provided with an R string 1 formed between reference voltage levels +Vref and -Vref by laying a serial circuit on which plural resistor elements are linearly arranged in a zigzag line. The R string 1 are constituted of 1st to 4th serial circuit respectively consisting of resistor elements R00 to R03 , R04 to R07 , R08 to R11 , R12 to R15 which are respectively linearly arranged and mutully electrically connected to form a zigzag state. Since potential levels outputted from respective nodes of the elements R00 to R15 are selectively outputted, a selector circuit 2 consisting of a 1st switch element group S00 to S15 and a 2nd switch element group S0 to S3 is arranged on one side of the R string 1. Consequently distances between noise generation areas and respective resistor elements can be almost uniformed.
Bibliography:Application Number: JP19940332857