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A Low-Power Wide-Linear-Range Transconductive Amplifier

Sarpeshkar, Rahul and Lyon, Richard F. and Mead, Carver (1998) A Low-Power Wide-Linear-Range Transconductive Amplifier. In: Neuromorphic Systems Engineering : Neural Networks in Silicon. Springer International Series in Engineering and Computer Science. No.447. Kluwer Academic , Boston, MA, pp. 267-313. ISBN 0792381580.

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In the past few years, engineers have improved the linearity of MOS transconductor circuits 12, 5, 10, 11, 19, 20, 26, 28, 29, 32]. These advances have been primarily in the area of above-threshold, high-power, high-frequency, continuous-time filters. Although it is possible to implement auditory filters (20Hz- 20khz) with these techniques, it is inefficient to do so. The transconductance and current levels in above-threshold operation are so high that large capacitances or transistors with very low W / L are required to create low-frequency poles, and area and power are wasted. In addition, it is difficult to span 3 orders of magnitude of transconductance with a square law, unless we use transistors with ungainly aspect ratios. However, it is easy to obtain a wide linear range above threshold.

Item Type:Book Section
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Additional Information:© 1998 Kluwer Academic
Series Name:Springer International Series in Engineering and Computer Science
Issue or Number:447
Record Number:CaltechAUTHORS:20150112-105932717
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53568
Deposited On:13 Jan 2015 02:18
Last Modified:03 Oct 2019 07:50

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