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Technique to improve linearity of transconductor with bias offset voltages controlling a tail current

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3 Author(s)
Yamaguchi, I. ; Dept. of Appl. Phys., Nat. Defense Acad., Kanagawa, Japan ; Matsumoto, F. ; Noguchi, Y.

Considering mobility degradation, a transfer characteristic of the transconductor using bias offset technique becomes nonlinear. Proposed is a technique to cancel the nonlinearity controlling a tail current. Using the proposed technique, the transconductance error is improved to 1/50 of that of the conventional circuit.

Published in:

Electronics Letters  (Volume:41 ,  Issue: 21 )