Abstract:In this paper, a 30 Gbps 1.25 pJ/b optical receiver analog front-end (Rx_AFE) mainly consisting of an active voltage-current feedback transimpedance amplifier (AVCF-TIA) and a staggered active feedback limiting amplifier (LA) is presented. By adopting active voltage-current feedback technique in the proposed TIA, the large input capacitance is well-isolated without the limitation of low supply voltage, and the direct contradiction between transimpedance gain and output pole frequency is alleviated significantl… Show more
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