A 32 Gb/s, 201 mW, MZM/EAM Cascode Push–Pull CML Driver in 65 nm CMOS
| Autor: | Gyungock Kim, Jiho Joo, Woorham Bae, Jun-Eun Park, Jung Min Yoon, Jeongho Hwang, Gyu-Seob Jeong, Chang Soo Yoon, Deog-Kyoon Jeong |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Engineering
business.industry 020208 electrical & electronic engineering Transistor Electrical engineering 02 engineering and technology Swing Inductor 020202 computer hardware & architecture law.invention CMOS law Modulation 0202 electrical engineering electronic engineering information engineering Cascode Electrical and Electronic Engineering Resistor business Electrical efficiency |
| Zdroj: | IEEE Transactions on Circuits and Systems II: Express Briefs. 65:436-440 |
| ISSN: | 1558-3791 1549-7747 |
| DOI: | 10.1109/tcsii.2017.2699328 |
| Popis: | This brief presents a 32 Gb/s driver for a Mach–Zehnder modulator (MZM) and an electro-absorption modulator (EAM). A push–pull current-mode logic driver is chosen to achieve a better power efficiency and a large voltage swing. A double cascode with thin oxide transistors is employed to mitigate the over-voltage stress associated with a large output voltage swing. At the same time, shunt-peaking inductors are incorporated in a compact way to extend the bandwidth and to have a flat group delay. The proposed driver has been fabricated using 65 nm CMOS technology with an active area of 0.086 mm2. The electrical measurement result shows that the driver exhibits a differential output swing of 4 ${\text V}_{\text {pp}}$ at 10 Gb/s. The measured extinction ratios of the driver using the MZM and EAM are 4.53 dB and 4.17 dB, respectively, at 32 Gb/s. The power consumption is 201 mW at 32 Gb/s, which corresponds to an energy efficiency of 6.28 mW/Gb/s. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|