DocumentCode :
1023824
Title :
A 0.18- 
CMOS 1.25-Gbps Automatic-Gain-Control Amplifier
Author :
Wang, I-Hsin ; Liu, Shen-Iuan
Author_Institution :
Nat. Taiwan Univ., Taipei
Volume :
55
Issue :
2
fYear :
2008
Firstpage :
136
Lastpage :
140
Abstract :
A 1.25-Gbps automatic-gain-control (AGC) amplifier is presented and it has been fabricated in 0.18-mum CMOS technology. To achieve a constant settling time, this AGC amplifier with the proposed variable gain amplifier (VGA) is presented. The measured VGA has a gain tuning range of 28.5 dB from -10 to 18.5 dB, and its measured group delay is about 12.15 ns. For the bit-error rate of 10-12, the sensitivity and the overload for this AGC amplifier are 25 and 430 mV, respectively. It achieves input dynamic range of 24.7 dB. The power dissipation is 43.2 mW from a single 1.8-V supply voltage. The chip area is 0.82 mm times 0.56 mm includes I/O pads.
Keywords :
CMOS integrated circuits; amplifiers; automatic gain control; error statistics; optical fibre LAN; optical receivers; passive networks; AGC amplifier; CMOS technology; EPON receivers; Ethernet passive optical network; automatic-gain-control amplifier; bit rate 1.25 Gbit/s; bit-error rate; gain -10 dB to 18.5 dB; measured group delay; power 43.2 mW; power dissipation; size 0.18 mum; size 0.56 mm; size 0.82 mm; time 12.15 ns; variable gain amplifier; voltage 1.8 V; voltage 25 mV; voltage 430 mV; Automatic gain control (AGC); CMOS; variable gain amplifier (VGA);
fLanguage :
English
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
Publisher :
ieee
ISSN :
1549-7747
Type :
jour
DOI :
10.1109/TCSII.2007.911810
Filename :
4415529
Link To Document :
