IOP : QTIA, a 2.5 or 10 Gbps 4-channel array optical receiver ASIC in a 65 nm CMOS technology

Sun, H.; Chen, S.-W.; Zhang, W.; Kulis, S.; Li, C.-Y.; Hou, S.; Zhang, L.; Huang, X.; Gong, D.; Moreira, P.; Sun, Q.; Liu, C.; Liu, T.; Deng, B.; Huang, G.; Ye, J.; Chao, C.-P.

doi:10.1088/1748-0221/17/05/C05017

Article
Report number	arXiv:2110.12626 ; FERMILAB-CONF-21-516-PPD
Title	QTIA, a 2.5 or 10 Gbps 4-channel array optical receiver ASIC in a 65 nm CMOS technology
Author(s)	Sun, H. (Southern Methodist U. (main) ; Hua-Zhong Normal U.) ; Huang, X. (Southern Methodist U. (main)) ; Chao, C.-P. (NSRRC, Taiwan) ; Chen, S.-W. (NSRRC, Taiwan) ; Deng, B. (Hubei U. ; Southern Methodist U.) ; Gong, D. (Southern Methodist U. (main)) ; Hou, S. (Taiwan, Inst. Phys.) ; Huang, G. (Hua-Zhong Normal U.) ; Kulis, S. (CERN) ; Li, C.-Y. (Unlisted, TW) ; Liu, C. (Southern Methodist U. (main) ; NSRRC, Taiwan) ; Liu, T. (Southern Methodist U. (main)) ; Moreira, P. (CERN) ; Sun, Q. (Fermilab) ; Ye, J. (Southern Methodist U. (main)) ; Zhang, L. (Southern Methodist U. (main) ; Hua-Zhong Normal U.) ; Zhang, W. (Southern Methodist U. (main) ; Hua-Zhong Normal U.)
Publication	2022-05-13
Imprint	2021-10-24
Number of pages	7
Note	6 pages, 6 figures, accepted for publication in JINST (TWEPP2021)
In:	JINST 17, 05 (2022) pp.C05017
In:	TWEPP 2021 Topical Workshop on Electronics for Particle Physics, Online, Online, 20 - 24 Sep 2021, pp.C05017
DOI	10.1088/1748-0221/17/05/C05017
Subject category	hep-ex ; Particle Physics - Experiment ; physics.ins-det ; Detectors and Experimental Techniques
Abstract	The Quad transimpedance and limiting amplifier (QTIA) is a 4-channel array optical receiver ASIC, developed using a 65 nm CMOS process. It is configurable between the bit rate of 2.56 Gbps and 10 Gbps per channel. QTIA offers careful matching to both GaAs and InGaAs photodiodes. At this R&D stage, each channel has a different biasing scheme to the photodiode for optimal coupling. A charge pump is implemented in one channel to provide a higher reverse bias voltage, which is especially important to mitigate radiation effects on the photodiodes. The circuit functions of QTIA successfully passed the lab tests with GaAs photodiodes.
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