Patent ID: 7057459

Claim:
A semiconductor integrated circuit, comprising: a first differential amplification device with a first polarity, the first differential amplification device being configured to amplify a voltage difference of two input signals inputted from a positive input terminal and a negative input terminal respectively; a second differential amplification device with a second polarity opposite of the first polarity, the second differential amplification device being configured to amplify the voltage difference of two input signals inputted from the positive input terminal and the negative input terminal respectively; a first addition device configured to add a non-inverted output of the first differential amplification device and an inverted output of the second differential amplification device; a second addition device configured to add a non-inverted output of the second differential amplification device and an inverted output of the first differential amplification device; an output stage control device having first and second switching elements, the first switching element with the first polarity controlled by an output signal of the second addition device, and the second switching element with the second polarity controlled by an output signal of the first addition device; an output stage having a third switching element with the first polarity controlled by an output signal of the first switching element of the output stage control device, and a fourth switching element with the second polarity controlled by an output signal of the second switching element of the output stage control device; and an output terminal configured to be connected to an output terminal of the third switching element and an output terminal of the fourth switching element in common.