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Low-distortion, emitter-coupled, differential voltage-to-current converters

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4 Author(s)
Mathew, M. ; Oxford Brookes Univ., Oxford ; Hayatleh, K. ; Hart, B.L. ; Lidgey, F.

This paper considers two schemes in which negative feedback is applied to a conventional emitter-coupled differential voltage-to-current converter circuit in order to achieve lower distortion. Representative circuits for each of these schemes together with simulated results for a given value of emitter-degeneration resistor are presented. It is possible to achieve a reduction in total harmonic distortion (THD) exceeding 20dB, for a peak-to-peak differential input voltage of 500mV, over that possible without this feedback.

Published in:

Circuits and Systems, 2007. MWSCAS 2007. 50th Midwest Symposium on

Date of Conference:

5-8 Aug. 2007