Design Technique for Transimpedance Amplifier using gm/Id Methodology

LIN Jia-hui; JIANG Xiang

doi:10.13756/j.gtxyj.2021.02.010

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Design Technique for Transimpedance Amplifier using gm/Id Methodology

- Design Technique for Transimpedance Amplifier using gm/Id Methodology
- Study on Optical Communications Issue 2, Pages: 54-58(2021)
- 作者机构：
  
  1.武汉邮电科学研究院，武汉　430074
  2.烽火通信科技股份有限公司，武汉　430073
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.02.010
  CLC： TN722
- Published：10 April 2021，
  
  Received：09 October 2020，
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LIN Jia-hui, JIANG Xiang. Design Technique for Transimpedance Amplifier using gm/Id Methodology. [J]. Study on Optical Communications (2):54-58(2021)
DOI：

LIN Jia-hui, JIANG Xiang. Design Technique for Transimpedance Amplifier using gm/Id Methodology. [J]. Study on Optical Communications (2):54-58(2021) DOI： 10.13756/j.gtxyj.2021.02.010.

摘要

针对短沟道晶体管数学模型高复杂度问题，文章提出了一种适用于刻画短沟道晶体管模型的gm/Id方法。该方法主要通过建立电路指标与晶体管尺寸的关系来优化电路性能。采用gm/Id方法设计了一种低功耗、低噪声和宽带宽的2.5 Gbit/s跨阻放大器，并进行了版图后仿真，仿真结果表明，当光电二极管电容为250 fF、跨阻放大器的低频增益为59.72 dBΩ、-3 dB带宽为3.445 GHz、输入的等效噪声电流密度为6.209×10

-3

nA/sqrt/Hz、等效输入积分噪声电流为876.0 nA且采用1.2 V的电压供电时，该电路整体功耗为7.5 mW。测试结果表明，输入100μA电流时，电路的峰值数据抖动约为64.92 ps，输出摆幅为81.1 mV。

Abstract

Aiming at the high complexity of the mathematical model of short channel transistor

a gm/Id method is proposed to describe the short channel transistor model. This method optimizes the circuit performance by establishing the relationship between the circuit index and transistor size. The experiment result shows that the transimpedance amplifier with a photodetector capacitance of 250 fF can achieve a gain of 59.72 dBΩ

a bandwidth of 3.445 GHz

an input referred current noise of 6.209×10

-3

nA/sqrt/Hz and equivalent input noise current of 876.0 nA. The design dissipates 7.5 mW from a 1.2 V supply. The test results show that

when 100 μA current is input

the peak to peak data jitter of the circuit is about 64.92 ps

and the output swing is 81.1 mW.

关键词

光接收机跨阻放大器gm/Id低电压低噪声

Keywords

optical receivertransimpedance amplifiergm/Idlow voltage supplylow noise

references

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谢生, 高谦, 毛陆虹, 等.2.5 Gb/s低噪声差分交叉耦合跨阻放大器的设计与实现[J].天津大学学报(自然科学与工程技术版), 2017, 50(6): 656-660.

Ingels M, Steyaert M S J.A 1 Gb/s, 0.7μm CMOS Optical Receiver with Full Rail-to-Rail Output Swing[J]. IEEE Journal of Solid-State Circuits, 1999, 34(7): 971-977.

Isworo L W, Ochi H, Muto C.A Low-voltage, Lowpower, Wide Gain-range VGA Design using gm/Id Method[C]//The 2010 ECTI International Confernce on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology. Chiang Mai, Thailand: IEEE, 2010: 392-396.

Pinjare S L, Nithya G, Sthuthi A, et al. A Gm/Id based Methodology for Designing Common Source Amplifier[C]//2018 2nd International Conference on Micro-Electronics and Telecommunication Engineering(ICMETE). Ghaziabad, India: IEEE, 2018: 304-307.

Atef M, Abd-elrahman D.2.5 Gbit/s Compact Transimpedance Amplifier using Active Inductor in 130 nm CMOS Technology[C]//2014 Proceedings of the 21st International Conference Mixed Design of Integrated Circuits and Systems(MIXDES). Lublin, Poland: IEEE, 2014: 103-107.

Groeneveld DJA. B and width Extension and Noise Cancelling for TIAs[D]. Netherlands: Uni. Twente, 2010.

Atef M, Zimmermann H. Optical Receiver using Noise Cancelling with an Integrated Photodiode in 40 nm CMOS Technology[J]. IEEE Transactions on Circuits and Systems, 2013, 60(7): 1929-1936.

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