Patent ID: 6636105
Filing Date: 2003-10-21
Classification: H03L

Abstract:
A semiconductor device, comprising:first and second output stage transistors generating an output signal as a result of a push-pull operation, said first an second output stage transistors being mutually connected in series between a first power supply and a second power supply, a first transistor that has a control electrode, to which a first input signal is inputted, and is connected between said first power supply and said second power supply; a first constant current source connected in series to said first transistor between said first power supply and said second power supply; a first specific transistor which is connected in series to said first transistor and said first constant current source between said first power supply and said second power supply and connected as current mirror to said first output stage transistor; a second transistor that has a control electrode, to which a second input signal is inputted, and is connected between said first power supply and said second power supply, a second constant current source that is connected in series to said second transistor between said first power supply and said second power supply; and a second specific transistor which is connected in series to said second transistor and said second constant current source between said first power supply and said second power supply and connected as current mirror to said second output stage transistor; and further comprising: a current error compensation circuit compensating for errors of currents respectively flowing through said first and second output stage transistors at the time of said push-pull operation, in accordance with said output signal and a reference signal.