A multichip on oxide (MCO) of 1 Gb/s 80 dB fully-differential CMOS transimpedance amplifiers for optical interconnect applications is described. MCO is used to avoid substrate noise coupling between the fully differential CMOS transimpedance amplifier (TIA) and digital logic. Sensitivity, bandwidth and signal to noise ratio of the whole receiver system are determined by the characteristics of the TIA. The measured frequency response with and without planar inductors is shown when a photodiode (PD) of 1 pF parasitic capacitance is connected.
|Digest of Technical Papers - IEEE International Solid-State Circuits Conference
|Published - 2002