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An Improved Current-Mode Squarer/Divider Circuit for Automotive Applications
Xin YIN Peter OSSIEUR Tine De RIDDER Johan BAUWELINCK Xing-Zhi QIU Jan VANDEWEGE
IEICE TRANSACTIONS on Electronics
Publication Date: 2008/02/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electronic Circuits
current-mode circuits, translinear, squarer/divider circuit, BiCMOS,
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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 to 140.