Paper Info
Title
A 1-V DTMOS-Based fully differential telescopic OTA
Abstract
The dynamic threshold MOSFET (DIMOS) in standard CMOS technology can be realized by connecting the body of a PMOS to the gate. The threshold voltage of a DTMOS transistor is reduced by forward bias of the source-body PN junction, making it possible to operate in low voltage circuits. In this paper, we propose a 1-V DTMOS-Based fully differential telescopic cascade OTA. The output swing and input common-mode range are enlarged by the DTMOS input pair. A concise bias circuit with negative feedback guarantees all transistors operate in the proper regions in all working conditions. A bulk-driven continuous time common mode feedback (CMFB) is designed and embedded in the biasing circuit, no extra current is consumed. The circuit is designed in 0.18 μm CMOS technology, simulations show that DC gain is 79 dB in typical condition and keeps above 70 dB in all working conditions, the input common mode range and output swing are enlarged to 0.4 V and 0.94 V respectively.
Year
DOI
Venue
2014
10.1109/APCCAS.2014.7032716
APCCAS
Keywords
Field
DocType
input common-mode range,negative feedback,cmos integrated circuits,bulk-driven continuous time cmfb,common mode feedback,operational transconductance amplifier,gain 79 db,source-body pn junction,operational amplifiers,circuit feedback,bias circuit,dynamic threshold mosfet,cmos technology,pmos,voltage 1 v,size 0.18 mum,voltage 0.94 v,voltage 0.4 v,dtmos-based fully differential telescopic ota,output swing,mosfet,forward bias,dtmos transistor,threshold voltage,gain
Computer science,Control theory,Negative feedback,CMOS,Electronic engineering,Common-mode signal,PMOS logic,Transistor,MOSFET,Threshold voltage,Electrical engineering,Biasing
Conference
Citations 
PageRank 
References 
1
0.63
3
Authors
5
Name
Order
Citations
PageRank
Jiaxin Liu1216.01
Yu Han213712.59
Liangbo Xie3103.63
Yao Wang463.16
Guangjun Wen55213.05