Current mode transconductor tuning device

A transconductor tuning device comprising:

• at least one transconductor that has a transconductance;
• and
• a tuning section that applies a tuning current and a reference voltage to the at least one transconductor to tune a value of the transconductance, wherein the tuning section comprises:
• a reference voltage generator that is connected to an external resistor, generates the reference voltage corresponding to a voltage generated by a constant current flowing into the external resistor and outputs the reference voltage to the at least one transconductor;
• and
• a tuning current generator that generates the tuning current and outputs the tuning current to the at least one transconductor, wherein the current mirror circuit comprises:
• a first Metal Oxide Semiconductor (MOS) transistor having a source terminal connected to a predetermined bias power source, and a gate terminal and a drain terminal connected to each other;
• a second MOS transistor having a source terminal connected to the drain terminal of the first MOS transistor, and a gate terminal and a drain terminal connected to each other;
• and
• at least one MOS transistor terminal that includes a pair of MOS transistors having gate terminals connected to the gate terminals of the first and the second MOS transistors, the at least one MOS transistor terminal mirroring currents flowing in the first and the second MOS transistors and outputting the mirrored currents to the at least one transconductor.