SUPPLY-VOLTAGE DRIVER FOR A DIFFERENTIAL AMPLIFIER

A supply voltage driver for one or more monolithic differential amplifiers sharing common power supplies comprises an additional monolithic differential amplifier operated as a voltage follower suspended between a current source and a current sink. Reference Zener diodes are coupled between the volt...

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Bibliographic Details
Main Author KELLOGG, JAMES R
Format Patent
LanguageEnglish
French
Published 18.10.1983
Edition3
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A supply voltage driver for one or more monolithic differential amplifiers sharing common power supplies comprises an additional monolithic differential amplifier operated as a voltage follower suspended between a current source and a current sink. Reference Zener diodes are coupled between the voltage follower output and the power supply terminals of the differential amplifiers to establish operating voltages which track an input signal. Additional current-boosting transistors are provided to provide fast slew rate during signal transistions. Overdrive circuitry is provided to limit the maximum and minimum signal levels.
Bibliography:Application Number: CA19810368324