| 摘要 |
PURPOSE: A linearity improved transconductance operational amplifier is provided to improve stability and the control range of transconductance by excluding the dependency of a differential input part on terminal current. CONSTITUTION: A linearity improved transconductance operational amplifier is provided with the first and second variable current supply part(30,31) for supplying a variety of output currents according to the control of the outside, a differential input part(32) for supplying the flow of current according to one partial output current of the first or second variable current supply part, and a current mirroring part(33) for supplying end output current corresponding to the other partial output current of the first and second variable current supply part according to the operation of the differential input part.
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