| Summary: | 碩士 === 國立雲林科技大學 === 電子與光電工程研究所碩士班 === 100 === A Voltage-controlled variable-gain optical receiver for optical wireless communication is described. A stable variable-gain fully-differential transimpedance feedback amplifier is designed employing a current-mode amplifier as the feedforward gain element. Using a photodiode capacitance of 5pF, the transimpedance gain, bandwidth, and power consumption of the optical receiver are 98dBΩ, 119MHz, and 88mW respectively. A voltage-control resistor is adopted in the feedback transimpedance amplifier. The receiver is designed and implemented using a 0.35μm 2P4M CMOS technology with 3.3V supply voltage. The optical receiver occupies a total chip area of 566um × 655um.
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