Low voltage current reference circuit with low temperature coefficient

2018 ◽  
Author(s):  
M. K. Amaljith ◽  
G. Hanumantha Rao ◽  
S. Rekha
Keyword(s):  
Low Temperature ◽  
Temperature Coefficient ◽  
Low Voltage ◽  
Current Reference ◽  
Reference Circuit

An All CMOS Current Reference

2011 ◽  
Vol 135-136 ◽  
pp. 192-197
Author(s):  
Lin An Li ◽  
Ming Tang ◽  
Wen Ou ◽  
Yang Hong
Keyword(s):  
Low Temperature ◽  
Temperature Coefficient ◽  
Supply Voltage ◽  
Current Source ◽  
Positive Temperature Coefficient ◽  
Positive Temperature ◽  
Signal Process ◽  
Temperature Variations ◽  
Current Reference ◽  
Reference Circuit

In this paper, an all CMOS current reference circuit which generates a reference current independent of PVT (Process, supply Voltage, and Temperature) variations is presented. The circuit consists of a self-biased current source (SBCS) and two nested connected transistors which supply a voltage with positive temperature coefficient and the resulting reference circuit has low temperature coefficient. It is based on CSMC 0.5um mixed-signal process with the supply voltage of 5V. The precision of reference current is about ±3.05% when considering the process, supply voltage and temperature variation at the same time.

Low-voltage, High-precision Bandgap Current Reference Circuit

2012 ◽  
Vol 58 (6) ◽  
pp. 501
Author(s):  
ChongWei Keat ◽  
Jeevan Kanesan ◽  
Harikrishnan Ramiah
Keyword(s):  
High Precision ◽  
Low Voltage ◽  
Current Reference ◽  
Reference Circuit

A High PSRR, Low Temperature Coefficient Bandgap Reference Circuit for Step-Down DC-DC Converters

2019 ◽  
Vol 44 (1) ◽  
pp. 159-164
Author(s):  
Jin Yang ◽  
Yuehua Dai ◽  
Xianwei Jiang ◽  
Junning Chen
Keyword(s):  
Low Temperature ◽  
Temperature Coefficient ◽  
Bandgap Reference ◽  
Reference Circuit ◽  
Step Down

A Low Temperature Coefficient, High Voltage Detection Circuit Used in Power over Ethernet

2012 ◽  
Vol 588-589 ◽  
pp. 839-842 ◽  
Author(s):  
Zhi Cheng Hu ◽  
Zhi Hua Ning ◽  
Le Nian He
Keyword(s):  
Low Temperature ◽  
Temperature Coefficient ◽  
High Voltage ◽  
Threshold Voltage ◽  
Bandgap Reference ◽  
Voltage Reference ◽  
Temperature Range ◽  
Detection Circuit ◽  
Reference Circuit ◽  
Simulation Results

A low temperature coefficient, high voltage detection circuit used in Power over Ethernet is proposed. This circuit realizes the detection comparison without utilizing an extra voltage reference circuit and comparator while the temperature coefficient of the threshold voltage is as low as that of a regular bandgap reference. The proposed detection circuit is implemented in CSMC 0.5μm 60V BCD process, Cadence Spectre simulation results show that the temperature coefficient of the threshold voltage is 66.5 ppm/°C over the temperature range of -40°C to 125°C, and the maximum variation of the threshold voltage is 2.7% under all corners.

scholarly journals Nano Power Current Reference Circuit Consisting of Sub-threshold CMOS Circuits

2019 ◽  
Vol 9 (1) ◽  
pp. 4657-4660
Keyword(s):  
Low Voltage ◽  
Supply Voltage ◽  
Circuit Simulation ◽  
Current Source ◽  
Threshold Power ◽  
Threshold Region ◽  
Voltage Range ◽  
Simulation Performance ◽  
Current Reference ◽  
Reference Circuit

a low voltage CMOS Nano power current reference circuit has been presented in this paper and also the circuit simulation performance in 180-nm UMC CMOS technology. Most of the MOSFETs operate in sub-threshold region consisting of bias-voltage, start-up and current-source sub-circuits. A stable reference current of 4-nA lying in supply voltage range of 1 V-1.8 V has been generated with line sensitivity of 0.203% /V. Within the temperature range of 0°C to 100 °C, and the voltage level of 1.8 V, the temperature coefficient was 7592ppm/°C. At the same voltage supply, the power dissipation was found out to be 380 NW. It is suitable to use this circuit in sub threshold power aware large scale integration.

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