1.44 mW and 60 dB dynamic range optical receiver for near infrared spectroscopy

Ahmed Atef, Mohamed Atef, Mohamed Abbas, Elsayed Esam M. Khaled

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents the design and post layout simulation of a high dynamic-rang and low-power transimpedance amplifiers (TIA) for frequency domain near infrared spectroscopy (FD-NIRS). The proposed TIA achieves 108.3 dBΩ gain, 10 MHz bandwidth, and 5.5 nArms integrated input referred noise using a photodiode with 2 pF capacitance. The proposed TIA consumes 260 μW from a 1.2 V supply. The maximum input photocurrent is extended to 9.2 μAp-p with the adopted automatic gain control (AGC). A post amplifier with AGC is introduced after the TIA to increase the gain of the optical receiver and to maintain a good linearity. The complete optical receiver achieves 122 dBΩ gain, 9.9 MHz bandwidth, 5.9 nArms total integrated input noise current, and consumes 1.44 mW from a 1.2 V supply.

Original languageEnglish
Title of host publicationICM 2016 - 28th International Conference on Microelectronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-24
Number of pages4
ISBN (Electronic)9781509057214
DOIs
Publication statusPublished - Jul 2 2016
Externally publishedYes
Event28th International Conference on Microelectronics, ICM 2016 - Giza, Egypt
Duration: Dec 17 2016Dec 20 2016

Publication series

NameProceedings of the International Conference on Microelectronics, ICM
Volume0

Conference

Conference28th International Conference on Microelectronics, ICM 2016
Country/TerritoryEgypt
CityGiza
Period12/17/1612/20/16

Keywords

  • Automatic Gain Control
  • Near Infrared Spectroscopy
  • Optical Receiver
  • Transimpedance Amplifier

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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