Dielectric Absorption in Memory Capacitors
- 1 January 1972
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 21 (1) , 53-56
- https://doi.org/10.1109/tim.1972.4313956
Abstract
Experience from experiments with a sample and hold circuit showed that dielectric absorption constitutes a fundamental limitation of the accuracy in analog memories. To gain more insight into the problem several materials commonly used as dielectrics in capacitors have been investigated. The theory of dielectric absorption is discussed. Results from measurements on capacitors with paper, cellulose acetate, parylene, polyester, polycarbonate, and polystyrene dielectrics are reported. The components in Dow's model, which describes the dielectric absorption, are calculated for the polycarbonate dielectric. A compensation circuit is suggested, which considerably reduces the effect of dielectric absorption in analog memories and electronic integrators.Keywords
This publication has 1 reference indexed in Scilit:
- An Analysis of Certain Errors in Electronic Differential Analyzers II-Capacitor Dielectric AbsorptionIEEE Transactions on Electronic Computers, 1958