DocumentCode :
516558
Title :
A Very High Slew-Rate Dynamic CMOS Operational Amplifier
Author :
Klinke, R. ; Hosticka, B.J. ; Pfleiderer, H.-J.
Author_Institution :
Fraunhofer Institute for Microelectronic Circuits and Systems D-4100 Duisburg 1, FRG
fYear :
1988
fDate :
21-23 Sept. 1988
Firstpage :
203
Lastpage :
206
Abstract :
We present a dynamic CMOS operational amplifier with a special input circuit which injects an extra bias current to increase the slew-rate, depending on the input signal. The performance of this operational amplifier is compared to a conventional operational amplifier when used in a sample&hold circuit. The maximum operating clock frequency of the sample&hold circuit increases from 290 kHz up to 1 MHz with a hold-capacitor of 1 nF. The amplifier has been fabricated in a 5 ¿m CMOS process and dissipates a static power of 7.5 mW.
Keywords :
CMOS technology; Circuits; Clocks; Differential amplifiers; Frequency; Operational amplifiers; Power amplifiers; Power dissipation; Switches; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 1988. ESSCIRC '88. Fourteenth European
Conference_Location :
Manchester, UK
Type :
conf
Filename :
5468347
Link To Document :
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