Title
Ultra-high bandwidth fully-differential three-stage operational amplifiers in 40nm digital CMOS
Abstract
Two three-stage fully differential operational amplifiers designed in 40nm digital CMOS technology are presented. The proposed operational amplifiers are designed to be applied in high speed system on chips (SoCs). The proposed operational amplifiers would find applications in continues time system (CTS) or discrete time system (DTS) according to their own frequency response type, which are discussed and verified by postlayout simulation. Under 1.1V supply voltage and 1kΩ+4pF load, simulation results show that 49dB DC gain, 3.2GHz GBW are achieved with 17mA DC current consumption for both operational amplifiers. The RMS input referred noise integrated from DC to 50MHz is 14.2μV for both operational amplifiers. The fully-symmetric layout pattern minimizes the input offset. Each of the operational amplifiers occupies about 0.011mm2 chip area.
Year
DOI
Venue
2013
10.1109/DDECS.2013.6549792
DDECS
Keywords
Field
DocType
cmos analogue integrated circuits,vhf circuits,bandwidth 3.2 ghz,discrete time system,current 17 ma,system on chip,microwave amplifiers,digital cmos technology,voltage 14.2 muv,current consumption,soc,frequency response,operational amplifiers,gain 49 db,size 40 nm,resistance 1 kohm,fully-symmetric layout pattern minimization,ultrahigh bandwidth fully-differential three-stage operational amplifier,system-on-chip,cts,rms input referred noise,continuous time systems,integrated circuit noise,vhf amplifiers,integrated circuit design,differential amplifiers,discrete time systems,cmos digital integrated circuits,capacitance 4 pf,continues time system,frequency 50 mhz,integrated circuit layout,dts,voltage 1.1 v,postlayout simulation,microwave integrated circuits,circuit simulation,topology,poles and zeros,cmos integrated circuits,resistors,capacitors,noise
System on a chip,Transistor array,Frequency response,Input offset voltage,Computer science,CMOS,Electronic engineering,Current sense amplifier,Operational amplifier applications,Electrical engineering,Operational amplifier
Conference
ISSN
ISBN
Citations 
2334-3133
978-1-4673-6134-7
1
PageRank 
References 
Authors
0.63
3
4
Name
Order
Citations
PageRank
Hong Chen110.63
Vladimir Milovanovic213.67
Dario Giotta310.63
H. Zimmermann45715.95