A Low Input Referred Noise and Low Crosstalk Noise 25 Gb/s Transimpedance Amplifier with Inductor-Less Bandwidth Compensation

This paper presents a low-noise and high-speed transimpedance amplifier (TIA) for optical interconnection. For high density parallel integration of optical receiver, small area and crosstalk mitigation arc important as well as high speed, low power and so on. We propose an inverter TIA (INV-TIA) with inductor-less bandwidth compensation circuits and a passive crosstalk filter. Since these additional circuits are composed with resistance and capacitance, the area overhead and the power overhead are much smaller than existing techniques. We fabricated a 25 Gb/s TIA in a 65-nm CMOS. Compared to the reference design, the proposed circuit reduces the input referred noise by 60% and the crosstalk noise by 25%.

[1]  Dan Li,et al.  A 25Gb/s 3D-integrated silicon photonics receiver in 65nm CMOS and PIC25G for 100GbE optical links , 2016, 2016 IEEE International Symposium on Circuits and Systems (ISCAS).

[3]  Toru Yazaki,et al.  A 25-to-28 Gb/s High-Sensitivity ( $-$9.7 dBm) 65 nm CMOS Optical Receiver for Board-to-Board Interconnects , 2014, IEEE Journal of Solid-State Circuits.

[4]  Li Sun,et al.  A 30-Gb/s 1.37-pJ/b CMOS Receiver for Optical Interconnects , 2015, Journal of Lightwave Technology.

[5]  Jri Lee,et al.  100Gb/s ethernet chipsets in 65nm CMOS technology , 2013, 2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers.