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Constant-bandwidth adaptive transimpedance amplifier

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4 Author(s)
M. T. Sanz ; Univ. of Zaragoza, Zaragoza ; J. m. Garcia Del Pozo ; S. Celma ; A. Sarmiento

A new CMOS transimpedance amplifier (TIA) with variable gain for optical fibre communication receivers is presented. The proposed configuration is realised in a low-cost digital 0.35 mum CMOS process fed from a single 1.8 V voltage supply. A 56-68 dBOmega transimpedance gain variation range is attained with 1 GHz bandwidth. The TIA shows 9 pA/radicHz input-referred spectral noise and only 6.9 mW power consumption.

Published in:

Electronics Letters  (Volume:43 ,  Issue: 25 )