An inductor-less broadband design technique for transimpedance amplifiers

• Main Authors: Lu, Zhenghao, Chen, Dandan, Yeo, Kiat Seng
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2010
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/90958; http://hdl.handle.net/10220/6289; http://www.isic2009.org/; http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5403711&queryText%3DInductor-less+Broadband+Design+Technique+for+Transimpedance+Amplifiers%26openedRefinements%3D*%26searchField%3DSearch+All
• Institution: Nanyang Technological University

An inductor-less bandwidth enhancement technique for transimpedance amplifiers is proposed in this paper, which uses a single capacitor to realize negative capacitance, capacitive source degeneration and capacitive peaking at the same time. Based on this technique, a broadband transimpedance amplifier is designed and simulated in 0.18μm RFCMOS technology. The simulation results show a bandwidth enhancement ratio of 2.5 is achieved without any inductor employed. The proposed TIA circuit is suitable for 10Gbit/s optical communications and presents the advantages of much less chip area consumption, low-cost and easy of design comparing to inductor based designs.