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Four-Quadrant-Input Linear Transconductor Employing Source and Sink Currents Pair for Analog Multiplier
Masakazu MIZOKAMI Kawori TAKAKUBO Hajime TAKAKUBO
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E89-A
No.2
pp.362-368 Publication Date: 2006/02/01 Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e89-a.2.362 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics) Category: Keyword: linear transconductor, source and sink currents pair, channel length modulation, four-quadrant analog multiplier,
Full Text: PDF>>
Summary:
A four-quadrant-input linear transconductor generating a product or a product sum current is proposed. The proposed circuit eliminates the influence of channel length modulation and expands a dynamic input voltage range. As an application of the proposed circuit, the four-quadrant analog multiplier is designed. The four-quadrant analog multiplier consists of the proposed circuit, an input circuit and a class AB current buffer. HSPICE simulation results with 0.35 µm n-well single CMOS process parameter are shown in order to evaluate the proposed circuit.
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