| 摘要 |
Provided is a signal driver including: operational amplifier circuits; a voltage generating unit configured to generate voltage signals; and selecting units configured to select one of the voltage signals, and to output the selected voltage signal as a correction voltage signal to a corresponding one of the operational amplifier circuits, each of the operational amplifier circuits including a differential amplifier and a correction current supply unit, and the differential amplifier including: first and second differential transistors forming a differential pair; and a current source transistor that supplies a current to source terminals of the first and the second differential transistors, wherein the correction current supply unit is configured to supply a drain terminal of the first differential transistor with a correction current corresponding to the correction voltage signal to adjust an input offset voltage of the operational amplifier circuit.
|
