Optical Receiver with Voltage-Controlled Transimpedance in BiCMOS Technology

An optical receiver in 0.6 mum BiCMOS technology with voltage-controlled resistor-based variable transimpedance is presented. The frequency bandwidth is independent of the photodiode capacitance. A linearity error smaller than 2.8 %, a sensitivity dynamic range of 76.3 (37.7 dB), an offset voltage smaller than 0.47 mV, a bandwidth up to 204 MHz, and a maximum power consumption of less than 4.05 mW have been achieved