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A compensated temperature CMOS Voltage-Controlled Grounded Resistance circuit
Author(s)
Date Issued
December 1, 2004
Type
Conference Paper
Abstract
A CMOS Voltage-Controlled Grounded Resistor (VCGR) using a new approach for non-linearity terms cancellation is proposed. The proposed circuit uses 17 MOS transistors that operate in ohmic region and saturation region. It consists of the voltage attenuator, voltage differential and voltage inverting circuits. These circuits are performed as a voltage dependent source for biasing an ohmic transistor; cancel the non-linearity terms and threshold voltage in order to compensate the temperature effect. The first order high-pass filter with tunable a cut-off frequency is presented as an application. The proposed circuit characteristics are high linearity and temperature compensation. The results have been confirmed by PSPICE. © 2004IEEE.
Citation
IEEE Region 10 Annual International Conference Proceedings TENCON, D, D298-D301, 2004