Name
Title | ||
|---|---|---|
A 25-to-28 Gb/s High-Sensitivity ( 9.7 dBm) 65 nm CMOS Optical Receiver for Board-to-Board Interconnects |
Abstract | ||
|---|---|---|
To address the two main challenges concerning the design of a transimpedance amplifier (TIA), namely, improving the sensitivity of the TIA without sacrificing bandwidth and suppressing inter-symbol interference (ISI) due to insertion loss, a 25 Gb/s optical receiver (RX) based on 65 nm CMOS technology, including a TIA and a PD operating at 1.3 μm wavelength, was developed. The key components of the TIA are a two-stage offset-cancelation scheme and a low-voltage output driver with peaking gain of 7.7 dB at 12.5 GHz. This driver performance is achieved by separating the equalizer function and output buffer of the driver. The TIA attains a sensitivity of -9.7 dBm (86- μApp) OMA and an eye opening of 65% at data rate of 25 Gb/s. The optical RX operates at 28 Gb/s with sensitivity of -8.2 dBm (121- μApp) OMA. Utilizing the CMOS TIA, an implemented VCSEL-based optical link operating at 850 nm wavelength achieves sensitivity of -7.3 dBm (98- μApp) OMA. Power consumption and power efficiency of the optical RX at data rate of 28 Gb/s are respectively 137.5 mW and 4.9 mW/Gb/s. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/JSSC.2014.2349976 | Solid-State Circuits, IEEE Journal of |
Keywords | DocType | Volume |
CMOS integrated circuits,operational amplifiers,optical interconnections,optical receivers,CMOS technology,ISI suppression,TIA,VCSEL-based optical link,bit rate 25 Gbit/s,bit rate 28 Gbit/s,board-to-board interconnects,equalizer function,frequency 12.5 GHz,gain 7.7 dB,insertion loss,intersymbol interference suppression,low-voltage output driver,optical RX,optical receiver,output buffer,power 137.5 mW,size 65 nm,transimpedance amplifier,two-stage offset-cancelation scheme,wavelength 1.3 mum,wavelength 850 nm,Board-to-board interconnect,CMOS,TIA,high sensitivity,low-voltage output driver,offset cancelation,optical receiver | Journal | 49 |
Issue | ISSN | Citations |
10 | 0018-9200 | 9 |
PageRank | References | Authors |
1.10 | 11 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Takashi Takemoto | 1 | 99 | 19.11 |
| Hiroki Yamashita | 2 | 83 | 14.48 |
| Yazaki, T. | 3 | 9 | 1.10 |
| Chujo, N. | 4 | 12 | 1.90 |