An Improved Current-Mode Squarer/Divider Circuit for Automotive Applications

Xin YIN; Peter OSSIEUR; Tine De RIDDER; Johan BAUWELINCK; Xing-Zhi QIU; Jan VANDEWEGE

doi:10.1093/ietele/e91-c.2.232

Regular Section

An Improved Current-Mode Squarer/Divider Circuit for Automotive Applications

Xin YIN, Peter OSSIEUR, Tine De RIDDER, Johan BAUWELINCK, Xing-Zhi QIU, Jan VANDEWEGE

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Keywords: current-mode circuits, translinear, squarer/divider circuit, BiCMOS

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2008 Volume E91.C Issue 2 Pages 232-234

DOI https://doi.org/10.1093/ietele/e91-c.2.232

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Abstract

A current-mode squarer/divider circuit with a novel translinear cell is presented for automotive applications. The proposed circuit technique increases the accuracy of the squarer/divider function with better input dynamic range and temperature insensitivity. Simulation results show that the variation of the output current is within ±0.2% over the temperature range from -40°C to 140°C.

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