Device for mixing signals

Details Device for mixing signals Device for mixing signals

H - Electricity

01

L

325/115, 356/74

H01L 27/02 (2006.01) H01L 29/423 (2006.01) H01L 29/43 (2006.01) H01L 29/78 (2006.01) H03D 7/12 (2006.01)

Patent

CA 1107404

ABSTRACT: A mixer according to the invention comprises a MOS transistor having an ideal quadratic characteristic. The transistor is of the D-MOST type and comprises a resis- tive gate across which a voltage drop is applied transversely to the longitudinal direction of the channel. The adjustment point of the transistor is chosen to be so that the range of gate voltages between the threshold voltage and the voltage at which the slope reaches the saturation value is always situated during operation within the voltage drop across the gate electrode. The signals to be mixed may be introduced capacitively via a second gate electrode situated above the resistive gate electrode and coupled capacitively therewith.

280003

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