Burst-Mode CMOS Transimpedance Amplifier Based on a Regulated-Cascode Circuit with Gain-Mode Switching

Takuya KOJIMA  Mamoru KUNIEDA  Makoto NAKAMURA  Daisuke ITO  Keiji KISHINE  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E102-A    No.6    pp.845-848
Publication Date: 2019/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E102.A.845
Type of Manuscript: LETTER
Category: Circuit Theory
burst-mode receiver,  PON system,  transimpedance amplifier,  regulated-cascode,  

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We present a novel burst-mode transimpedance amplifier (TIA) with a gain-mode switching. The proposed TIA utilizes a regulated-cascode (RGC) input stage for broadband characteristics. To expand a dynamic range, the RGC controls a linear operating range depending on transimpedance gains by adjusting bias conditions. This TIA is implemented using the 0.18μm-CMOS technology. The experimental results show that the proposed TIA IC has a good eye-opening and can respond quickly to the burst data.