A high-frequency CMOS linear transconductance element
- 1 November 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems
- Vol. 33 (11), 1132-1138
- https://doi.org/10.1109/tcs.1986.1085859
Abstract
A simple four-transistor, linear, tunable, high-frequency transconductance element is described. By using a pair of compositen-channel-p-channel devices, the circuit achieves its linearity by current differencing without undue matching requirements. It is shown that linearity and frequency response can be optimized simultaneously by appropriate choice of device dimensions. The performance is verified by SPICE simulations, and an operational transconductance amplifier (OTA) is used as one example for the many applications of the proposed element.Keywords
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