A multi-channel current-mode CMOS optical receiver array for active optical HDMI cables

LETTER

Department of Electronics Engineering, Ewha Womans University">Seung Hoon Kim, Jihye Shin, Jinju Lee, Xiao Ying, Hanbyul Choi, Kyungmin Lee, Chaerin Hong, Sang-Bock Cho, Sung Min Park

Author information

Seung Hoon Kim
School of Electrical Engineering, University of Ulsan
Department of Electronics Engineering, Ewha Womans University
Jihye Shin
Department of Electronics Engineering, Ewha Womans University
Jinju Lee
Department of Electronics Engineering, Ewha Womans University
Xiao Ying
Department of Electronics Engineering, Ewha Womans University
Hanbyul Choi
Department of Electronics Engineering, Ewha Womans University
Kyungmin Lee
Department of Electronics Engineering, Ewha Womans University
Chaerin Hong
Department of Electronics Engineering, Ewha Womans University
Sang-Bock Cho
School of Electrical Engineering, University of Ulsan
Sung Min Park
Department of Electronics Engineering, Ewha Womans University

Keywords: active optical cables, CMOS, current mirror, limiting amplifier, transimpedance amplifier

JOURNAL FREE ACCESS

2014 Volume 11 Issue 23 Pages 20140927

DOI https://doi.org/10.1587/elex.11.20140927

Browse “Advance online publication” version

Details

Abstract

This paper introduces a four-channel optical receiver array implemented in a standard 1P4M 0.18 µm CMOS technology for the applications of active optical HDMI cables. Each channel consists of a current-mirror transimpedance amplifier, a five-stage differential limiting amplifier, and an output buffer, demonstrating 81-dBΩ transimpedance gain, 1.8-GHz bandwidth even with 0.5-pF photodiode capacitance, −18.3-dBm optical sensitivity for 10⁻¹² BER & 0.6-A/W responsivity, and 51.7-mW power dissipation from a single 1.8-V supply. The whole chip occupies the area of 1.35 × 2.46 mm² including pads. The measured eye-diagrams of the array confirms wide and clear eye-openings up to 4.0-Gb/s operations.

Corresponding author

Register with J-STAGE for free!