Hauptman Ham, LLP
Circuit and method for bandwidth measurement
A circuit for measuring a bandwidth of an amplifier includes a switch-capacitor circuit and a controller. The switch-capacitor circuit is coupled to an output and an input of the amplifier. The switch-capacitor circuit is switchable between a sampling mode and an amplification mode. The controller is coupled to the switch-capacitor circuit and the output of the amplifier. The controller is configured to switch the switch-capacitor circuit between the sampling mode and the amplification mode, control the amplification mode to have various durations, and determine the bandwidth of the amplifier based on the various durations of the amplification mode and corresponding voltages at the output of the amplifier.
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
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inventional inventional additional additional
Wen-Shen Yung-Chow Chih-Chiang Brady
Chou Peng Chang Yang