CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links

Waqas Ahmad; Mohammed Abdulaziz; Markus Törmänen; Henrik Sjöland

doi:10.1109/ISCAS.2015.7168719

CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links

Waqas Ahmad, Mohammed Abdulaziz, Markus Törmänen, Henrik Sjöland

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

A variable gain transimpedance amplifier (TIA) is presented featuring single-ended to differential conversion by means of negative feedback. The proposed topology also ensures stability when amplifier gain is varied. Furthermore, effective input capacitance of the TIA is reduced by using a positive capacitive feedback. The circuit is intended for intermediate frequency (IF) over fiber systems, but can be readily adapted for other applications. When simulated with a photodiode capacitance of 1.4 pF, the TIA exhibits a tunable gain range of 51 to 73dBΩ with a bandwidth of 550 MHz. The circuit designed in a standard 65nm CMOS process consuming 4mA from a 1.2V supply, achieves a spurious free dynamic range (SFDR) of 109dB·Hz 2/3 at 100 MHz.

Original language	English
Title of host publication	2015 IEEE International Symposium on Circuits and Systems (ISCAS)
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	978-1-4799-8391-9
DOIs	https://doi.org/10.1109/ISCAS.2015.7168719
Publication status	Published - 2015
Event	IEEE International Symposium on Circuits and Systems (ISCAS), 2015 - Lisbon, Portugal Duration: 2015 May 24 → 2015 May 27

Conference

Conference	IEEE International Symposium on Circuits and Systems (ISCAS), 2015
Country/Territory	Portugal
City	Lisbon
Period	2015/05/24 → 2015/05/27

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

Access to Document

10.1109/ISCAS.2015.7168719

Distrant: Distributed antenna systems for efficient wireless systems
Nejdel, A. (Researcher), Dahman, G. (Researcher), Prabhu, H. (Researcher), Flordelis i Minguez, J. (Researcher), Liu, L. (Researcher), Abdulaziz, M. (Researcher), Ahmad, W. (Researcher), Tufvesson, F. (Researcher), Törmänen, M. (Researcher), Rusek, F. (Researcher), Sjöland, H. (Researcher), Rodrigues, J. (Researcher) & Edfors, O. (Researcher)
2011/01/01 → 2016/12/31
Project: Research

Cite this

@inproceedings{b6e75c6cf65d48c094ecb9edbdbf5351,

title = "CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links",

abstract = "A variable gain transimpedance amplifier (TIA) is presented featuring single-ended to differential conversion by means of negative feedback. The proposed topology also ensures stability when amplifier gain is varied. Furthermore, effective input capacitance of the TIA is reduced by using a positive capacitive feedback. The circuit is intended for intermediate frequency (IF) over fiber systems, but can be readily adapted for other applications. When simulated with a photodiode capacitance of 1.4 pF, the TIA exhibits a tunable gain range of 51 to 73dBΩ with a bandwidth of 550 MHz. The circuit designed in a standard 65nm CMOS process consuming 4mA from a 1.2V supply, achieves a spurious free dynamic range (SFDR) of 109dB·Hz 2/3 at 100 MHz.",

author = "Waqas Ahmad and Mohammed Abdulaziz and Markus T{\"o}rm{\"a}nen and Henrik Sj{\"o}land",

year = "2015",

doi = "10.1109/ISCAS.2015.7168719",

language = "English",

booktitle = "2015 IEEE International Symposium on Circuits and Systems (ISCAS)",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "IEEE International Symposium on Circuits and Systems (ISCAS), 2015 ; Conference date: 24-05-2015 Through 27-05-2015",

}

Ahmad, W, Abdulaziz, M, Törmänen, M & Sjöland, H 2015, CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links. in 2015 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE - Institute of Electrical and Electronics Engineers Inc., IEEE International Symposium on Circuits and Systems (ISCAS), 2015, Lisbon, Portugal, 2015/05/24. https://doi.org/10.1109/ISCAS.2015.7168719

CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links. / Ahmad, Waqas; Abdulaziz, Mohammed; Törmänen, Markus et al.
2015 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE - Institute of Electrical and Electronics Engineers Inc., 2015.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links

AU - Ahmad, Waqas

AU - Abdulaziz, Mohammed

AU - Törmänen, Markus

AU - Sjöland, Henrik

PY - 2015

Y1 - 2015

N2 - A variable gain transimpedance amplifier (TIA) is presented featuring single-ended to differential conversion by means of negative feedback. The proposed topology also ensures stability when amplifier gain is varied. Furthermore, effective input capacitance of the TIA is reduced by using a positive capacitive feedback. The circuit is intended for intermediate frequency (IF) over fiber systems, but can be readily adapted for other applications. When simulated with a photodiode capacitance of 1.4 pF, the TIA exhibits a tunable gain range of 51 to 73dBΩ with a bandwidth of 550 MHz. The circuit designed in a standard 65nm CMOS process consuming 4mA from a 1.2V supply, achieves a spurious free dynamic range (SFDR) of 109dB·Hz 2/3 at 100 MHz.

AB - A variable gain transimpedance amplifier (TIA) is presented featuring single-ended to differential conversion by means of negative feedback. The proposed topology also ensures stability when amplifier gain is varied. Furthermore, effective input capacitance of the TIA is reduced by using a positive capacitive feedback. The circuit is intended for intermediate frequency (IF) over fiber systems, but can be readily adapted for other applications. When simulated with a photodiode capacitance of 1.4 pF, the TIA exhibits a tunable gain range of 51 to 73dBΩ with a bandwidth of 550 MHz. The circuit designed in a standard 65nm CMOS process consuming 4mA from a 1.2V supply, achieves a spurious free dynamic range (SFDR) of 109dB·Hz 2/3 at 100 MHz.

U2 - 10.1109/ISCAS.2015.7168719

DO - 10.1109/ISCAS.2015.7168719

M3 - Paper in conference proceeding

BT - 2015 IEEE International Symposium on Circuits and Systems (ISCAS)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE International Symposium on Circuits and Systems (ISCAS), 2015

Y2 - 24 May 2015 through 27 May 2015

ER -

CMOS Adaptive TIA with Embedded Single-Ended to Differential Conversion for Analog Optical Links

Abstract

Conference

Subject classification (UKÄ)

Access to Document

Fingerprint

Projects

Distrant: Distributed antenna systems for efficient wireless systems

Cite this