WPAT, P.C., Intellectual Property Attorneys
Circuit and method for measuring the gain of an operational amplifier
A circuit for measuring the gain of an operational amplifier is provided. The circuit comprises a first operational amplifier, a first resistive device and a second resistive device. The first operational amplifier has an original gain and includes a first input terminal and a second input terminal. The first resistive device is coupled between the first input terminal and the second input terminal of the first operational amplifier. The second resistive device is coupled to the second input terminal of the first operational amplifier. The first resistive device and the second resistive device are configured to reduce a predetermined amount of gain from the original gain of the first operational amplifier.
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
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Chih-Chiang Chung-Chieh Yung-Chow Chung-Ting Chung-Peng
Chang Yang Peng Lu Hsieh