Patent ID: 6937098

Claim:
A circuit implementing a translinear amplifier, disposed in a semiconductor substrate, intended to work linearly within a wide specified voltage range, with minimal component count, comprising: a first means for a current dividing circuit with two branches, each comprising at least one MOSFET transistor and with a common current source, where the gates of said MOSFET transistors are connected with said translinear amplifier's inputs and where the current ratio in said branches of said first current dividing circuit is dependent on said translinear amplifier's input voltage difference; a second means for a current dividing circuit with two branches, each comprising at least one MOSFET transistor and with a common current source, where one gate of said MOSFET transistors is connected with said translinear amplifier's reference voltage and the other is connected to said translinear amplifier's output and where the current ratio in said branches of said second current dividing circuit is dependent on the voltage difference of said translinear amplifiers reference voltage and output voltage; and means to force the current division within said first current dividing circuit and the current division within said second current dividing circuit to the same value of current ratios.