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A Synthesis of Highly Linear MOS Circuits and Their Application to Filter Realization
Shigetaka TAKAGI Zdzislaw CZARNUL Nobuo FUJII
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/02/25
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on High-Performance MOS Analog Circuits)
MOS circuits, negative impedance converter, filters,
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This paper proposes a novel method to realize highly linear MOS circuits using MOSFETs in the nonsaturation region. The proposed method is based on the cancellation of nonlinearity of two MOSFETs by using a current inversiontype negative impedance converter. First, grounded and floating resistor realizations are discussed. Next, by exploiting the MOS resistor circuits, gyrators and inductors are realized. As an application example, a third-order doubly-terminated LC filter is simulated. SPICE analysis shows low total harmonic distortions, excellent controllability and small gain error in the passband.