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Design and simulation of differential transimpedance amplifier with active feedback for optical receivers

Duraiswamy, P and Anusha, U and Raghu, S and Selvaraja, SK (2022) Design and simulation of differential transimpedance amplifier with active feedback for optical receivers. In: Microwave and Optical Technology Letters, 64 (6). pp. 1112-1117.

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Official URL: https://doi.org/10.1002/mop.33223


An active feedback network-based bandwidth extension technique for CMOS differential transimpedance amplifier (TIA) is proposed in 0.18 µm CMOS process technology. The design consists of three stages in differential mode. The first stage is a common-source amplifier that minimizes noise. A common collector stage is used for level shifting and buffering in the second stage. The third stage is a differential amplifier that provides additional gain. In addition to these three stages, an active CMOS negative feedback circuit is used for extending the bandwidth. The proposed design achieves a gain of 45.2 dBΩ with a 3 dB bandwidth of 21.23 GHz. The active feedback circuit provides an additional bandwidth of 7.3 GHz. The TIA achieves a data rate of 30 Gb/s with input-referred noise current density of 63.1 pA/ (Formula presented.) and jitter of 9.07 ps. The TIA consumes a power of 10.3 mW with a supply voltage of 1.8 V. © 2022 Wiley Periodicals LLC

Item Type: Journal Article
Publication: Microwave and Optical Technology Letters
Publisher: John Wiley and Sons Inc
Additional Information: The copyright for this article belongs to the John Wiley and Sons Inc
Keywords: CMOS integrated circuits; Differential amplifiers; Feedback amplifiers; Integrated circuit design; Operational amplifiers, Active feedback; Bandwidth extension technique; CMOS process technology; Design and simulation; Differential mode; Feedback circuits; Feedback networks; Gain; Low Power; Network-based, Bandwidth
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 12 May 2022 07:26
Last Modified: 12 May 2022 07:26
URI: https://eprints.iisc.ac.in/id/eprint/71646

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