Abstract
A fully differential transimpedance amplifier (TIA) employing the wide-swing cascode (WSC) topology for optical receiver is designed in a TSMC 0.18/spl mu/m CMOS technology. The SpectreS simulations show a transimpedance gain of 82dB/spl Omega/ (12.6K/spl Omega/), 3-dB bandwidth of 2.4GHz, low input impedance (<50/spl Omega/), dynamic range of 66dB, equivalent input referred noise of 36pA//spl radic/(Hz) and 19.5mW power consumption with 1.8V voltage supply.
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