Extended reference range, voltage-mode CMOS D/A converter

Extended reference range, voltage-mode CMOS D/A converter

A CMOS D/A converter for use in a voltage-mode and having complementary-driven switch pairs for Vref and Agnd respectively. The "ON" gate voltage of the Agnd switch is adjusted in accordance with the value of Vref, to give switch VGS equality and therefore "ON" resistance matchin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TUTHILL, MICHAEL G, MINOGUE, PASCHAL
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:A CMOS D/A converter for use in a voltage-mode and having complementary-driven switch pairs for Vref and Agnd respectively. The "ON" gate voltage of the Agnd switch is adjusted in accordance with the value of Vref, to give switch VGS equality and therefore "ON" resistance matching with the Vref switch over a wide range of reference voltage. Circuits are shown for developing the Agnd gate voltage varying with Vref.