K. Vavelidis et al., 6-TERMINAL MOSFET - MODELING AND APPLICATIONS IN HIGHLY LINEAR, ELECTRONICALLY TUNABLE RESISTORS, IEEE journal of solid-state circuits, 32(1), 1997, pp. 4-12
The electrical properties of a six-terminal MOSFET are studied and a s
trong-inversion model is derived. Due to its special structure, the si
x-terminal MOSFET can be operated as a highly-linear, electronically-t
unable resistor. This is managed by applying proper voltages at the te
rminals of the structure, achieving channel uniformity independent of
applied signals, Measurements on fabricated test devices yield distort
ion levels of -90 dB for 1 V-p-p signals.