| 摘要 |
An analog source driving apparatus including an operational amplifier, a first resistor, a second resistor, a variable gain unit and a source driver is provided. A constant gain amplifier is composed with the operational amplifier, the first resistor, and the second resistor, wherein the first resistor is coupled between the inverse input terminal of the operational amplifier and the ground, and the second resistor is coupled between the inverse input terminal and the output terminal of the operational amplifier. The variable gain unit is coupled to an analog signal and the non-inverse input terminal of the operational amplifier for adjusting the analog signal to avoid affecting the zero point position and pole position of the system. Accordingly, the analog source driving apparatus can provide a stable driving output.
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