New CMOS floating voltage-controlled resistor

5 June 1986

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 22 (12) , 667-668
https://doi.org/10.1049/el:19860456

Abstract

A new CMOS floating voltage-controlled resistor for continuous-time filtering applications is described. The value of the resistance simulated by this circuit is independent of the threshold voltage of the transistors. This allows us to obtain a larger input range and also minimises the effects of threshold voltage mismatches and substrate noise. These improvements are obtained at the expense of a higher sensitivity to mismatches in the W/L ratios of the transistors.

Keywords

FLOATING VOLTAGE-CONTROLLED RESISTOR
ACTIVE NETWORKS
RESISTOR SIMULATION
THRESHOLD VOLTAGE MISMATCHES
SUBSTRATE NOISE MINIMISATION
LINEAR IC
CMOS
CONTINUOUS-TIME FILTERING APPLICATIONS

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