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IEICE TRANSACTIONS on Fundamentals

Low-Power and Wide-Input Range Voltage Controlled Linear Variable Resistor Using an FG-MOSFET and Its Application

Muneo KUSHIMA, Koichi TANNO, Okihiko ISHIZUKA

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Summary :

In this paper, a voltage-controlled linear variable resistor (VCLVR) using a floating-gate MOSFET (FG-MOSFET) is proposed. First, the grounded VCLVR realization is discussed. The proposed circuit consists of only an ordinary MOSFET and an FG-MOSFET. The advantages of the proposed VCLVR are low-power and wide-input range and also the power consumption of the proposed VCLVR is the same as an ordinary passive resistor. The performance of the proposed circuits are confirmed by HSPICE simulations with a standard 0.6 µm CMOS process parameters. Simulations of the proposed VCLVR demonstrate a resistance value of 40 kΩ to 338 kΩ and an input range of 4.34 V within THD of less than 1.1%. Next, we proposed a new floating node linear variable resistor using the proposed VCLVR. The performance of the circuit is also evaluated through HSPICE.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E86-A No.2 pp.342-349
Publication Date
2003/02/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
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