Picowatt 0.3-V MOS-only voltage reference based on a picoamp cascode current generator

Aminzadeh, Hamed; Valinezhad, Mohammad Mahdi

doi:10.1016/j.vlsi.2022.07.014

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…The paper proposes an ultra-low-power MOS-only voltage reference that has low output voltage variations with process variations, a good temperature coefficient, high PSRR, and low line sensitivity by subtracting two PTAT voltages. To 21 Aminzadeh and Valinezhad 22 Fassio et al 23 Qiao et al 24 Aminzadeh and Valinezhad 25 Year…”

Section: Discussionmentioning

confidence: 99%

MOSFET only low power sub‐bandgap voltage reference by subtraction of slope compensated proportional‐to‐absolute‐temperature voltage references

Thomas Abraham,

K.J.

2023

Circuit Theory & Apps

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SummaryVoltage references are typically designed by combining a complimentary to absolute temperature (CTAT) and proportional to absolute temperature (PTAT) voltage references. However, in contrast to conventional voltage references, the proposed circuit generates a voltage reference by subtracting two PTAT voltages, resulting in an extremely low process‐dependent voltage reference. A novel subtractor is also proposed for subtracting PTAT voltages, which is used to generate the reference voltage. The temperature coefficient of the proposed voltage reference is further improved using a novel PTAT slope compensation technique. The proposed voltage reference is a MOS‐only ultra‐low power circuit that works with sub‐bandgap supply voltage. Simulation results using UMC 0.18 m technology MOSFETs show that the proposed circuit has a line sensitivity of 0.5%/V, a temperature coefficient of 21.37 ppm/° C, a power consumption of 15.6 nW, and an output voltage variation of only 0.22% due to process variations.

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Section: Discussionmentioning

confidence: 99%

MOSFET only low power sub‐bandgap voltage reference by subtraction of slope compensated proportional‐to‐absolute‐temperature voltage references

Thomas Abraham,

K.J.

2023

Circuit Theory & Apps

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A high‐precision voltage reference with a curvature‐compensated bandgap for fluorescence detection

Xiong,

Mo,

Yan

et al. 2024

Circuit Theory & Apps

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SummaryFluorescent optical fiber temperature sensors require accurate online temperature monitoring in hazardous environments with strong electromagnetic fields, high voltages, flammability, or explosiveness. This imposes stringent requirements on the temperature coefficient stability of the bandgap reference (BGR) circuit. To address these challenges, this paper proposes a high‐order curvature compensation bandgap reference (HCC_BGR) circuit fabricated using a 0.18‐μm bipolar‐CMOS‐DMOS (BCD) process. A traditional first‐order bandgap reference (TRA_BGR) circuit is also fabricated for comparison. Experimental results demonstrate that the proposed HCC_BGR circuit generates a stable 1.22‐V reference voltage with a low‐temperature coefficient of 5.56 ppm/°C from −20°C to 85°C. Compared to the TRA_BGR circuit, the HCC_BGR reduces the temperature coefficient by 3.07 times. Furthermore, the low‐dropout regulator (LDO) using the proposed HCC_BGR exhibits excellent line sensitivity of 1.52%/V from 3.4 to 5 V.

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An area-efficient 1.96 nA 0.55 V 96 ppm/°C self-biased current reference using active resistor temperature coefficient compensation

Yang

Meng

2023

AEU - International Journal of Electronics and Communications

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Picowatt 0.3-V MOS-only voltage reference based on a picoamp cascode current generator

Cited by 4 publications

References 17 publications

MOSFET only low power sub‐bandgap voltage reference by subtraction of slope compensated proportional‐to‐absolute‐temperature voltage references

MOSFET only low power sub‐bandgap voltage reference by subtraction of slope compensated proportional‐to‐absolute‐temperature voltage references

A high‐precision voltage reference with a curvature‐compensated bandgap for fluorescence detection

An area-efficient 1.96 nA 0.55 V 96 ppm/°C self-biased current reference using active resistor temperature coefficient compensation

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