Title
800-nA Process-and-Voltage-Invariant 106-dB PSRR PTAT Current Reference
Abstract
This brief presents a novel process-and-voltage-invariant proportional to absolute temperature (PTAT) current reference. The proposed circuit is designed and fabricated in 180-nm mixed-mode CMOS technology. Measurement results show that the IPTAT varies only by ±2.4% (±3σ/mean) across 18 test chips. One thousand Monte Carlo simulation runs show that the maximum deviation (±3σ/mean) from the desired value of the PTAT current is ±5.4%. The proposed PTAT current reference uses a process, voltage, and temperature (PVT)-invariant resistor circuit having RON variation reduced by 4.2 times, as compared to a fixed biased MOSFET. The proposed PTAT current reference draws only 800-nA current from the supply voltage and also exhibits a high dc power supply rejection ratio (PSRR) of 106 dB. This brief also presents a PVT-invariant transconductance using the implemented PVT-invariant resistor.
Year
DOI
Venue
2013
10.1109/TCSII.2013.2268435
IEEE Trans. on Circuits and Systems
Keywords
Field
DocType
cmos integrated circuits,pvt-invariant transconductance,proportional to absolute temperature (ptat) current,psrr,current 800 na,resistor,high dc power supply rejection ratio,process-and-voltage-invariant psrr ptat current reference,proportional-to-absolute temperature current reference,monte carlo simulation,mixed-mode cmos technology,fixed biased mosfet,process and temperature tolerance,monte carlo methods,process-voltage-and temperature invariant resistor circuit,size 180 nm,transconductance,reference circuits,pvt-invariant resistor circuit,resistors
Monte Carlo method,Control theory,Voltage,Absolute zero,CMOS,Electronic engineering,Resistor,Power supply rejection ratio,Transconductance,MOSFET,Electrical engineering,Mathematics
Journal
Volume
Issue
ISSN
60
9
1549-7747
Citations 
PageRank 
References 
6
0.63
6
Authors
4
Name
Order
Citations
PageRank
Anvesha Amaravati1195.56
Marshnil Vipin Dave2111.27
Maryam Shojaei Baghini38629.67
Dinesh Kumar Sharma44811.91