@inproceedings{1e94227c9e5d4ca099c3053b5ee4bf97,
title = "A dual-mode adjustable high-gain ultra-low noise transimpedance amplifier for fine dust detection",
abstract = "This paper presents a dual-mode adjustable-high-gain transimpedance amplifier (TIA). The TIA is designed with a high sensitivity to current bio-signals for a fine-dust detection system Integrated Circuit (IC) based on the operation of a photodiode module with high gain amplifications. Gain adjustment is implemented by coarse gain steps using selective-loads with four different gain values and fine gain steps by 42 dBΩ during 16 fine steps. To improve the settling time, a capacitive compensation is applied for the last stage. An off-state circuitry is proposed to avoid any off-current leakage. This TIA is designed in a 0.18 µm standard CMOS technology, output reached high gains from 149 dBΩ up to 216 dBΩ with 67 dBΩ gain variation range, input referred noise less than 600 fA/√Hz in low frequencies and less then 27 fA/ √ Hz at 20 KHz, a minimum detectable current signal of 4 pA, and has a power consumption of 2.71 mW.",
keywords = "Dual-mode gain, High gain, High sensitive, TIA, Transimpedance amplifier, Ultra-low-noise",
author = "Rad, \{Reza E.\} and Arash Hejazi and Pu, \{Young Gun\} and Lee, \{Kang Yoon\}",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE; 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 ; Conference date: 10-10-2020 Through 21-10-2020",
year = "2020",
language = "English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings",
}