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Wide-Input Range Variable Resistor Circuit Using an FG-MOSFET
Muneo KUSHIMA Koichi TANNO Okihiko ISHIZUKA
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Analog Signal Processing
analog integrated circuits, floating-gate MOSFET (FG-MOSFET), variable resistor circuit, wide-input range,
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In this letter, a linear variable resistor circuit using an FG-MOSFET (floating-gate MOSFET) is proposed. This is based on Schlarmann's variable resistor and is very simple. The advantage of the proposed circuit is a wide-input range. The utility of the proposed circuit was confirmed by HSPICE simulation with 1.2 µm CMOS process parameters. The simulation results are reported in this letter.