PROJECT TITLE :

CMOS Transimpedance Amplifier for Visible Light Communications

ABSTRACT:

Transimpedance amplifiers (TIAs) play a pivotal role within the optical wireless receiver front finish. To take advantage of its distinctive open-loop characteristics, a feedback transimpedance amplifier comprising a feedforward current amplifier (CA-TIA) is investigated. Attributing to the small input impedance with a high-pass response of its feedforward gain part, the bandwidth of the CA-TIA is less sensitive to the TIA gain. The analysis and implementation of the CA-TIA are experimentally validated.