Amplifiers – With semiconductor amplifying device – Including field effect transistor
Patent
1986-08-19
1988-03-29
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including field effect transistor
330253, 330257, 330264, H03F 316, H03F 345
Patent
active
047346540
ABSTRACT:
A simple CMOS linear, tunable, high-frequency transconductance element is described. By using a pair of composite n-channel/p-channel devices, the transconductance circuit achieves its linearity by current differencing without undue matching requirements. The circuit configurations use current differencing to cancel the square-law nonlinearities of the field effect transistors and require approximate matching between transistors of the same type.
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Mullins James B.
Regents of the University of Minnesota
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