A 12.5 Gb/s 1.38 mW all-inverter-based optical receiver with multi-stage feedback TIA and continuous-time linear equalizer Institutional Repository Document uri icon

abstract

  • Abstract An optical receiver employs an all-inverter-based front-end design that provides maximum transconductance for a given power supply and allows for ultra-low power consumption. The feedback transimpedance amplifier (TIA) input stage utilizes a multi-stage amplifier to achieve a dramatic increase in feedback resistance and lower input-referred noise. Cascading an inverter-based active inductor continuous-time linear equalizer (CTLE) provides frequency peaking to compensate the input stage TIA that is intentionally designed with a reduced bandwidth to achieve adequate sensitivity at low power. Fabricated in 28 nm CMOS, the 12.5 Gb/s optical receiver achieves -10.7 dBm OMA sensitivity at 0.11 pJ/bit energy efficiency and occupies only 720 m2 area.

author list (cited authors)

  • Yan, P., Hong, C., Chang, P., Kang, H., Annabattuni, D., Kumar, A., ... Palermo, S.

complete list of authors

  • Yan, Peng||Hong, Chaerin||Chang, Po-Hsuan||Kang, Hyungryul||Annabattuni, Dedeepya||Kumar, Ankur||Fan, Yang-Hang||Liu, Ruida||Rady, Ramy||Palermo, Samuel

Book Title

  • Research Square

publication date

  • February 2023