In many analogue systems, such as correlators, adaptive filters, curve-fitting etc., analogue multipliers are required. However, common MOS multipliers do not match the performance of bipolar ones. In the letter, a new one-quadrant multiplier concept suitable for MOS systems applications is presented. The method is based on time-division concept and its building blocks are well known MOS subcircuits such as comparators, operational amplifiers, and current sources. The properties of the system are demonstrated using computer simulations.
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Brodarac et al. (1982) studied this question.