2011
DOI: 10.4028/www.scientific.net/kem.483.487
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A Four-Quadrant Analog Multiplier Based on CMOS Source Coupled Pair

Abstract: A novel structure for CMOS four-quadrant analog multiplier is presented. The multiplier is based on the square law of MOSFET. To enlarge the input impedance and improve the linearity, CMOS source coupled pair was employed. Also active attenuator was used to enhance the input range. Compared with the traditional multipliers based on Gilbert cell, the proposed circuit features high linearity, high input range. Circuit simulation using HSPICE with 0.5μm CMOS technology shows that under ±2.5V supply the proposed m… Show more

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