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

In English

Författare

Summary, in English

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.

Publiceringsår

2015

Språk

Engelska

Publikation/Tidskrift/Serie

2015 IEEE International Symposium on Circuits and Systems (ISCAS)

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

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

Conference date

2015-05-24 - 2015-05-27

Conference place

Lisbon, Portugal

Status

Published

Projekt

  • Distributed antenna systems for efficient wireless systems

Forskningsgrupp

  • Analog RF

ISBN/ISSN/Övrigt

  • ISBN: 978-1-4799-8391-9