A High-Precision Bandgap Reference With a V-Curve Correction Circuit

In this study, a precision bandgap reference with a v-curve correction (VCC) circuit is presented. The proposed VCC circuit generates a correction voltage to reduce the temperature drift of the reference voltage and achieves a low temperature coefficient (TC) in a wide temperature range. The propose...

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Bibliographic Details
Published in:IEEE access 2020, Vol.8, p.62632-62638
Main Authors: Lee, Chang-Chi, Chen, Hou-Ming, Lu, Chi-Chang, Lee, Bo-Yi, Huang, Hsien-Chi, Fu, He-Sheng, Lin, Yong-Xin
Format: Article
Language:English
Subjects:
Bandgap reference
Circuits
CMOS
Electric potential
Energy gap
line regulation
Low temperature
Photonic band gap
Room temperature
Simulation
Temperature
temperature coefficient (TC)
Temperature distribution
temperature drift
Temperature measurement
Transistors
v-curve correction (VCC) circuit
Voltage
Voltage control
Voltage measurement
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Summary:In this study, a precision bandgap reference with a v-curve correction (VCC) circuit is presented. The proposed VCC circuit generates a correction voltage to reduce the temperature drift of the reference voltage and achieves a low temperature coefficient (TC) in a wide temperature range. The proposed bandgap reference was designed and fabricated using a standard TSMC 0.18-\mu \text{m} 1P6M CMOS technology with an active area of 0.0139 mm 2 . The measured results show that the proposed bandgap reference achieves a TC of 1.9-5.28 ppm/°C over a temperature range of -40°C to 140 °C at a supply voltage of 1.8 V. In addition, the circuit demonstrated a line regulation of 0.033 %/V for supply voltages of 1.2 - 1.8 V at room temperature.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.2984800