2002•Unpublished venueRequires access

A high transimpedance-bandwidth, high dynamic range, CMOS front-end for open air optical links

J.L. Cura, E. de Vasconcelos, Rui L. Aguiar

Abstract

A high transimpedance-bandwidth, high dynamic range, integrated CMOS amplifier is presented. This front-end circuit is specially designed for open air optical communications featuring a 50 MHz bandwidth with a dynamic range of 60 dB, due to the implemented automatic step gain control. The power consumption is around 70 mW and the input referred noise is smaller than 36 pA/sub rms/. The design approach is full custom based, using a double poly, double metal, 0.8 /spl mu/m CMOS technology.

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Key concepts: Transimpedance amplifier, CMOS, Dynamic range, Bandwidth (computing), Front and back ends, Wide dynamic range, Electrical engineering, Power consumption