A 1.2V −55°C‐125°C ultra‐low noise bandgap voltage reference without start‐up circuit

This paper proposes a novel bandgap voltage reference (BGR) with low temperature coefficient, ultra‐low noise and without start‐up circuit. Designed in a TSMC 180‐nm CMOS technology, this bandgap voltage reference operates in the temperature range of −55 to 125°C with 5‐V voltage supply and provides...

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Bibliographic Details
Published inElectronics letters Vol. 59; no. 8
Main Authors Tao, Linzhi, Zhuang, Haoyu, Li, Qiang
Format Journal Article
LanguageEnglish
Published Stevenage John Wiley & Sons, Inc 01.04.2023
Wiley
Subjects
analogue circuits
analogue integrated circuits
analogue‐digital conversion
Circuits
Conflicts of interest
Electric potential
Energy gap
Equilibrium
Low noise
Low temperature
Software
Transistors
Voltage
Writing
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Summary:This paper proposes a novel bandgap voltage reference (BGR) with low temperature coefficient, ultra‐low noise and without start‐up circuit. Designed in a TSMC 180‐nm CMOS technology, this bandgap voltage reference operates in the temperature range of −55 to 125°C with 5‐V voltage supply and provides a 1.2‐V output voltage VBG. A 16.8 ppm/°C temperature coefficient (TC) and the output RMS noise from 0.1 to 10 Hz of 1.69 µV is achieved. The circuit‐level simulation results verify the presented structure. By the improved architecture of the IPTAT generation stage, the proposed BGR can be powered on normally without designing additional start‐up circuit to eliminate equilibrium point, which greatly simplifies the circuit complexity. This paper proposes an ultra‐low noise bandgap voltage reference without start‐up circuit.
ISSN:0013-5194
1350-911X
DOI:10.1049/ell2.12788