A LINEAR TRANSCONDUCTANCE CELL WITH WIDE TUNING RANGE

• Main Authors: GUDEM, PRASAD, SAHOTA, GURKANWAL KAMAL
• Format: Patent
• Language: English; French; German
• Published: 30.05.2007
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

A transconductance cell comprising a tunable degeneration circuit having a plurality of field effect transistors connected in series, each of the field effect transistors having a gate configured to receive a tuning voltage, wherein the tunable degeneration circuit further comprises a tapped voltage divider network configured to apply the tuning voltage to each of the field effect transistors through a different one of the taps, wherein each of said one or more resistors has a value that results in a differential voltage between each adjacent pair of the taps when the tuning voltage is applied to the tapped voltage divider network, the differential voltage being equal to the quiescent drain-to-source voltage of one of the field effect transistors.