Paper Info
Title
A 5-Gb/s Noise Optimized Receiver Using a Switched TIA for Wireless Optical Communications.
Abstract
This paper reports a systematic approach for designing a low noise and low power optical receiver targeting high sensitivity imaging architectures for optical wireless communications. For line of sight tracking in optical wireless communications, a switching matrix is employed between the pixel/photodetector array and the transimpedance (TIA) amplifier. An optimization procedure is introduced to balance various performance parameters in the optical receiver front end when including the effect of the switch. The presented optical receiver consists of a low noise, wideband TIA, where noise and stability are optimized using a series inductor at the input. The TIA is followed by a limiter with offset cancellation and 50 Omega output buffer capable of 900 mV p-p differential output swing, over the 50 Omega resistance of the BERTScope. The receiver implemented in the IBM 130 nm CMOS technology, achieves a bit error rate of 10(-12) at 5-Gb/s corresponding to 2.8 mu A current at the input and at 4-Gb/s corresponding to 2.1 mu A input current, in presence of 1 pF input capacitance representing the photodiode. The total power consumption including the on chip 50 Omega differential output buffer is 68 mW from 1.5 V DC supply. The die area including bonding pads and output buffer is 1106 mu m Chi 895 mu m.
Year
DOI
Venue
2014
10.1109/TCSI.2013.2283672
IEEE Trans. on Circuits and Systems
Keywords
Field
DocType
CMOS integrated circuits,operational amplifiers,optical links,optical receivers,optimisation,photodetectors,CMOS technology,bit error rate,bit rate 5 Gbit/s,capacitance 1 pF,current 2.1 muA,current 2.8 muA,high sensitivity imaging architectures,line of sight tracking,low noise optical receiver,low power optical receiver,noise optimized receiver,offset cancellation,optical wireless communications,photodetector array,photodiode,power 68 mW,series inductor,size 130 nm,switched TIA,switching matrix,transimpedance amplifier,voltage 1.5 V,voltage 900 mV,wireless optical communications,Broadband amplifiers,integrated optoelectronics,low-noise amplifiers,optical receivers,optimization of transimpedance amplifiers
Optical transistor,Optical switch,Electronic engineering,Transimpedance amplifier,Optical performance monitoring,Optical wireless communications,Electrical engineering,Mathematics,Operational amplifier,Amplifier,Photodiode
Journal
Volume
Issue
ISSN
61-I
4
1549-8328
Citations 
PageRank 
References 
5
0.67
7
Authors
2
Name
Order
Citations
PageRank
Behrooz Nakhkoob1222.52
Mona Mostafa Hella26814.51