A 12.5 Gb/s 1.38 mW Inverter-Based Optical Receiver in 28 nm CMOS
- Resource Type
- Conference
- Authors
- Yan, Peng; Hong, Chaerin; Chang, Po-Hsuan; Kang, Hyungryul; Annabattuni, Dedeepya; Kumar, Ankur; Fan, Yang-Hang; Liu, Ruida; Rady, Ramy; Palermo, Samuel
- Source
- 2022 IEEE 65th International Midwest Symposium on Circuits and Systems (MWSCAS) Circuits and Systems (MWSCAS), 2022 IEEE 65th International Midwest Symposium on. :1-4 Aug, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Robotics and Control Systems
Signal Processing and Analysis
Resistance
Sensitivity
Power supplies
Equalizers
Circuits and systems
Feedback amplifiers
Optical receivers
CMOS
CTLE
inverter
optical receiver
transimpedance amplifier
- Language
- ISSN
- 1558-3899
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. A multi-stage transimpedance amplifier (TIA) feedback amplifier is utilized to achieve a dramatic increase in feedback resistance and lower input-referred noise. Cascading an inverter-based 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.