A 2.3 V low noise, low power, 10 GHz bandwidth Si-bipolar transimpedance preamplifier for optical receiver front-ends

A low-noise, low power Si-bipolar transimpedance preamplifier for optical-fibre receivers is presented. Design specifications are met in the form of trade-offs between input noise current, speed, transimpedance gain, power dissipation, impedance matching, and supply voltage. This preamplifier, designed in a 0.5 /spl mu/m 25 GHz self-aligned double poly silicon bipolar process, is expected to exhibit 8pA//spl radic/Hz input noise current, 10 GHz bandwidth, and 43 dB transimpedance gain, while dissipating only 9 mW from a single supply voltage of 2.3 V.