Infrared and Laser Engineering, Volume. 51, Issue 6, 20210386(2022)
Feedforward common gate transimpedance amplifier circuit based on CMOS active inductor in parallel
A modified feedforward common gate transimpedance amplifier circuit was designed. By using CMOS active inductor in parallel with the common source amplifier stage in the feedforward common gate transimpedance amplifier circuit, the bandwidth and gain of the transimpedance amplifier circuit can be improved effectively. Based on TSMC 60 nm CMOS process, simulation analysis and layout design of MFCG cross-resistance amplifier were carried out on Cadence software platform. The simulation results show that when the power supply voltage is 1.8 V and the photodiode junction capacitance is 200 fF, the amplifier circuit's -3 dB bandwidth is 17.2 GHz, the transimpedance gain is 55 dBΩ, the equivalent input noise current spectral density is less than 55 pA /
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Zhifu Feng, Jiahong Zhang, Yingna Li, Zhengang Zhao. Feedforward common gate transimpedance amplifier circuit based on CMOS active inductor in parallel[J]. Infrared and Laser Engineering, 2022, 51(6): 20210386
Category: Optical communication and sensing
Received: Dec. 20, 2021
Accepted: --
Published Online: Dec. 20, 2022
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