A Modified Regulated Cascode transimpedance amplifier with extra feed-forward path to enhance gain and bandwidth

نوع مقاله : علمی-پژوهشی

نویسندگان

1 Department of electrical engineering, Bu-Ali Sina University, Hamedan, Iran

2 Department of electrical engineering, Quchan University of technology, Quchan, Iran

چکیده

This paper presents a Transimpedance Amplifier (TIA) for high sensitivity Near Infrared Spectroscopy (NIRS). The proposed TIA is based on the Regulated Cascode (RGC) structure with an extra transistor employed to implement additional feed-forward path and achieve higher gain values. The extra transistor senses a partially amplified input signal, available in the conventional circuit, and conveys an additional ac current into the load, which provides a higher gain. In addition, a bandwidth extension method is introduced using a capacitor and resistor, which can improve amplifier’s bandwidth by 40%. The proposed TIA is designed in 0.18µm CMOS technology and achieves a transimpedance gain of 101.9dB with a -3dB bandwidth of 91.2 MHz considering 2pF of photodiode capacitance at the TIA input. The input referred noise is 4.4pA/√Hz while dissipating 151µW power.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

A Modified Regulated Cascode transimpedance amplifier with extra feed-forward path to enhance gain and bandwidth

نویسندگان [English]

  • Z. Sohrabi 1
  • M. Zare 2
1 Department of electrical engineering, Bu-Ali Sina University, Hamedan, Iran
2 Department of electrical engineering, Quchan University of technology, Quchan, Iran
چکیده [English]

This paper presents a Transimpedance Amplifier (TIA) for high sensitivity Near Infrared Spectroscopy (NIRS). The proposed TIA is based on the Regulated Cascode (RGC) structure with an extra transistor employed to implement additional feed-forward path and achieve higher gain values. The extra transistor senses a partially amplified input signal, available in the conventional circuit, and conveys an additional ac current into the load, which provides a higher gain. In addition, a bandwidth extension method is introduced using a capacitor and resistor, which can improve amplifier’s bandwidth by 40%. The proposed TIA is designed in 0.18µm CMOS technology and achieves a transimpedance gain of 101.9dB with a -3dB bandwidth of 91.2 MHz considering 2pF of photodiode capacitance at the TIA input. The input referred noise is 4.4pA/√Hz while dissipating 151µW power.

کلیدواژه‌ها [English]

  • Transimpedance Amplifier
  • Regulated Cascode
  • high-gain
  • bandwidth extension
  • NIRS

مراجع

[1] R. Yun and V. M. Joyner, “A monolithically integrated phase-sensitive optical sensor for frequency-domain NIR spectroscopy,” IEEE Sensors J., vol. 10, no. 7, pp. 1234–1242, 2010.
[2] R. Yun and V. J. Koomson, “A novel CMOS frequency-mixing transimpedance amplifier for frequency domain near infrared spectroscopy,” IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 60, no. 1, pp. 84–94, 2013.
[3] A. Chaddad and C. Tanougast, "Low-noise transimpedance amplifier dedicated to biomedical devices: Near infrared spectroscopy system," 2014 International Conference on Control, Decision and Information Technologies (CoDIT), 2014, pp. 601-604.
[4] A. Atef, M. Atef, M. Abbas, and E. E. M. Khaled, “High-sensitivity regulated inverter cascode transimpedance amplifier for near infrared spectroscopy,” in Proc. 4th Int. Japan–Egypt Conf. Electronics, Communications and Computers (JEC-ECC), Cairo, 2016, pp. 99–102.
[5] A. Atef, M. Atef, E. E. M. Khaled and M. Abbas, “CMOS Transimpedance Amplifiers for Biomedical Applications: A Comparative Study,” IEEE Circuits and Systems Magazine, vol. 20, no. 1, pp. 12-31, Firstquarter 2020.
[6] B. Razavi, Design of integrated circuits for optical communications. John Wiley & Sons, 2012.
[7] A. Trabelsi and M. Boukadoum, "Comparison of two CMOS front-end transimpedance amplifiers for optical biosensors," IEEE Sensors Journal, vol. 13, no. 2, pp. 657-663, 2012.
[8] S. A. Hosseinisharif; M. Pourahmadi; M. R. Shayesteh. "An Active, Low-Power, 10Gbps, Current-based Transimpedance Amplifier in a Broadband Optical Receiver Front-End". Tabriz, J. Electr. Eng., Vol. 51, pp. 49–60., 2021.
[9] F. Deshours et al., "Optical transimpedance receiver for high data transmission in OFDM modulation format," Journal of Lightwave Technology, vol. 33, no. 10, pp. 2004-2011, 2015.
[10] M. Serri and S. Saeedi, “Ultra-low-noise TIA topology for MEMS gyroscope readout,” AEU - International Journal of Electronics and Communications, vol. 118, p. 153145, 2020.
[11] S. M. Park and H.-J. Yoo, "1.25-Gb/s regulated cascode CMOS transimpedance amplifier for gigabit ethernet applications," IEEE Journal of Solid-State Circuits, vol. 39, no. 1, pp. 112-121, 2004.
 [12] امیری، صیفوری، آفرین و هدایتی‌پور. "طراحی پیش تقویت‌کننده RGC  کم نویز مدار مجتمع CMOS با پهنای باندGHz 20 و بهره  dBΩ60"، مجله مهندسی برق دانشگاه تبریز، جلد 46 شماره2، صفحات 15-23، 1395
[13] M. de Medeiros Silva and L. B. Oliveira, "Regulated common-gate transimpedance amplifier designed to operate with a silicon photo-multiplier at the input," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, no. 3, pp. 725-735, 2013.
[14] Z. Lu, K. S. Yeo, J. Ma, M. A. Do, W. M. Lim, and X. Chen, "Broad-band design techniques for transimpedance amplifiers," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 54, no. 3, pp. 590-600, 2007.
[15] S. A. Hosseinisharif, M. Pourahmadi, and M. R. Shayesteh, "Utilization of a cascoded-inverter in an RGC structure as a low-power, broadband TIA," Microelectronics Journal, vol. 99, p. 104749, 2020.
[16] S. Zohoori and M. Dolatshahi, “A low-power CMOS transimpedance amplifier in 90-nm technology for 5-Gbps optical communication applications,” International Journal of Circuit Theory and Applications, vol. 46, no. 12, pp. 2217–2230, Sep. 2018.
[17] E. Kang et al., "A variable-gain low-noise transimpedance amplifier for miniature ultrasound probes," IEEE Journal of Solid-State Circuits, vol. 55, no. 12, pp. 3157-3168, 2020.  
[18] R. Ma, M. Liu, H. Zheng, and Z. Zhu, "A 77-dB dynamic range low-power variable-gain transimpedance amplifier for linear LADAR," IEEE Transactions on circuits and systems II: Express Briefs, vol. 65, no. 2, pp. 171-175, 2017.
[19] F. Khoeini, B. Hadidian, K. Zhang and E. Afshari, "A Transimpedance-to-Noise Optimized Analog Front-End With High PSRR for Pulsed ToF Lidar Receivers," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 68, no. 9, pp. 3642-3655, Sept. 2021,
[20] M. Atef and H. Zimmermann, Optical communication over plastic optical fibers: integrated optical receiver technology. Springer, 2012.
مجله مهندسی برق دانشگاه تبریز
دوره 53، شماره 3
آبان 1402
صفحه 235-243

فایل ها

هم رسانی

ارجاع به این مقاله

آمار