| 摘要 |
A differential input circuit includes a first differential circuit of a current mirror type for generating a first differential voltage by using an input voltage and a reference voltage, a second differential circuit of a current mirror type for generating a second differential voltage having a phase opposite to that of the first differential voltage by using the input voltage and the reference voltage, and a third differential circuit for generating an output voltage corresponding to a difference voltage of the first and second differential voltages by using the first and second differential voltages. A first clamping circuit for clamping the first differential voltage is provided between the first and third differential circuits. A second clamping circuit for clamping the second differential voltage is provided between the second and third differential circuits.
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