Sub-1-V BGR and POR Hybrid Circuit With 2.25-μA Current Dissipation and Low Complexity

Zhou, Bo; Jin, Yeran; Zhao, Fuyuan

doi:10.1109/tvlsi.2020.3009452

Cited by 13 publications

(3 citation statements)

References 15 publications

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“…Recently reported POR circuits can be divided into two main categories. The first kind of POR circuits employs a bandgap to generate a high-accuracy reference voltage, which is compared with the supply voltage by a comparator to get a trip voltage [16,17,18,19,20,21,22]. The trip voltage of the POR circuit is determined by the reference voltage of the bandgap and a high-accuracy trip voltage can be achieved.…”

Section: Introductionmentioning

confidence: 99%

A 0.6V 1.76nW power on reset circuit with high accuracy

Wang

Ren

et al. 2022

IEICE Electron. Express

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A low voltage high-accuracy power on reset circuit with an ultra-low quiescent current is proposed in this paper. The circuit employs a 5-transistor voltage reference with a good temperature stability instead of bandgap to provide a precise reference voltage, which is compared with the supply voltage to generate an accurate trip voltage. A 4-transistor complementary-to-absolute-temperature voltage reference is proposed for temperature compensation and reduces significantly the trip voltage deviation. The proposed circuit is implemented in 55-nm CMOS process with an area of 2080 µm 2 . The measurement results show that the trip-voltage deviation is only 5 mV from −40 • C to 125 • C. And it achieves a power consumption of 1.76 nW at 0.6 V.

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Section: Introductionmentioning

confidence: 99%

A 0.6V 1.76nW power on reset circuit with high accuracy

Wang

Ren

et al. 2022

IEICE Electron. Express

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show abstract

“…Several POR circuits have been displayed in previous works [1][2][3][4][5][6][7][8][9]. These POR circuits can be divided into voltagereference-based POR circuits and delay-based POR circuits.…”

Section: Introductionmentioning

confidence: 99%

“…These POR circuits can be divided into voltagereference-based POR circuits and delay-based POR circuits. The voltage-reference-based POR circuits [1][2][3][4][5] employ a bandgap and a voltage comparator to get high accuracy tripvoltage, which is robust to PVT variations. But this kind of POR circuits have large quiescent current, usually several μA.…”

Section: Introductionmentioning

confidence: 99%

A 0.5V 36nW 10-Transistor Power-on-Reset Circuit with High Accuracy

You

Jia

Qiao

2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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In this paper, a low voltage high accuracy 10transistor power-on-reset circuit with brown-out-reset function is proposed. A native NMOS current reference based architecture is proposed to get high accuracy trip-voltage with a small area and power consumption. By adjusting the number of native NMOS transistors, a stable hysteresis window is obtained. Post-layout simulation results based on SMIC 55nm CMOS process show that the trip-voltage deviation of the proposed power-on-reset circuit is only 34mV under different temperature and process corners. Also, the trip-voltage of the proposed power-on-reset circuit shows great robustness to supply ramp time. The power consumption of the proposed circuit is as low as 36nW at 0.5V. Since the proposed power-onreset circuit consists of only 10 transistors, the area is as low as 67.5μm 2 .

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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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Sub-1-V BGR and POR Hybrid Circuit With 2.25-μA Current Dissipation and Low Complexity

Cited by 13 publications

References 15 publications

A 0.6V 1.76nW power on reset circuit with high accuracy

A 0.6V 1.76nW power on reset circuit with high accuracy

A 0.5V 36nW 10-Transistor Power-on-Reset Circuit with High Accuracy

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

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