This letter describes an ultra-low-noise, high-speed transimpedance amplifier (TIA) applied to the analog front-end (AFE) circuit of the high-sensitivity optical receiver. A combination of a three-stage amplifier and two positive… The post A 2 pA/ √Hz Input-Referred Noise TIA in 180-nm CMOS With 2.5GHz Bandwidth for Optical Receiver appeared first on IEEE Solid-State Circuits Society.| IEEE Solid-State Circuits Society