DocumentCode
516991
Title
A Single Chip Digital Voltmeter in P-MOS Technology
Author
Kessler, H. ; Jiru, P.
Author_Institution
Integrated Circuits Div., SIEMENS AG, Munich, Germany
fYear
1978
fDate
18-21 Sept. 1978
Firstpage
124
Lastpage
125
Abstract
The Dual Slope Conversion Technique is presently the most popular method employed in Digital Voltmeters. But needing high performance operational amplifiers for integrator and comparator, a one chip realization of this conversion method in MOS Technology implies a lot of external circuitry for the purpose of offset compensation and amplifier stability. Therefore a Single Slope Technique is used by discharging an external capacitor from the unknown voltage via a Constant-Current-Source and using the linear voltage-time relationship for conversion. All offset and adjusting problems of this method can be solved digitally.
Keywords
MOSFET; operational amplifiers; voltmeters; P MOS technology; constant current source; dual slope conversion technique; high performance operational amplifiers; one chip realization; single chip digital voltmeter; single slope technique; Charge measurement; Circuits; Current measurement; Electrical resistance measurement; Electronics packaging; MOS capacitors; Semiconductor device measurement; Tellurium; Voltage; Voltmeters;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid State Circuits Conference - Digest of Technical Papers, 1978. ESSCIRC 78. 4th European
Conference_Location
Amsterdam
Type
conf
Filename
5469024
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