Design of a Bandgap Reference with Low Temperature Drift and High PSRR

Peng, Hao; Lin, Haijun; Chen, Zhi; Zheng, Zhexin; Peng, Jiawen

doi:10.1109/iccs56666.2022.9936160

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…Where V T = kT/q is the thermal voltage, k is the Boltzmann constant, q is the charge of an electron [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

A -89dB PSRR 1.064ppm/°C bandgap voltage reference based on curvature compensation

Xia,

Li,

Han

et al. 2024

IEICE Electron. Express

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In the 0.35 um BCD process, a low-temperature coefficient, high PSRR bandgap voltage reference with high-order curvature compensation is designed. The circuit is simulated and verified using Cadence software. The results indicate that, operating with a power supply voltage of 3.3 V, and functioning across temperatures ranging from -55°C to +125°C, the temperature coefficient of the output reference voltage is 1.064 ppm/°C, the output bandgap reference voltage is 1.227 V, and the power supply rejection ratio of the circuit at a low frequency of 100 Hz is -89 dB. This illustrates that the circuit achieves a favorable balance in temperature coefficient and PSRR, demonstrating its practical utility.

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“…Where V T = kT/q is the thermal voltage, k is the Boltzmann constant, q is the charge of an electron [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

A -89dB PSRR 1.064ppm/°C bandgap voltage reference based on curvature compensation

Xia,

Li,

Han

et al. 2024

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…To solve the problem of low voltage, Annema [6] used the dynamic threshold voltage MOS (DTMOS) instead of the general MOS tube to manufacture the reference source, so that the supply voltage is reduced to 0.85 V. Liu et al [7] proposed to adopt a charge pump circuit, which lifts the supply voltage through the charge pump and then supplies power to the circuit. The output reference size is 0.46 V, and the minimum supply voltage can reach 0.55 V. For portable devices using batteries, it is necessary to be able to work in a wide power supply voltage range and be stable [8].…”

Section: Introductionmentioning

confidence: 99%

A Sub-1V High PSRR Bandgap Voltage Reference with Temperature Compensation for Low Dropout Regulator

Wu,

Guo,

Zhang

2024

J. Phys.: Conf. Ser.

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In this paper, a sub-1V high Power Supply Rejection Ratio (PSRR) Bandgap Voltage Reference with temperature compensation is presented to provide a reference voltage for the Low Dropout Regulator (LDO). This bandgap can compensate the output circuit through a temperature compensation structure, which outputs a sub-1V reference voltage and has a low-temperature coefficient. The 55 nm CMOS process is used for design and simulation. The temperature range is 165°C (-45°C∼120°C). At the TT process corner, when the typical voltage value is 2.5 V, the Temperature Coefficient (TC) is 4.751 ppm/°C, and the PSRR is up to -107 dB at low frequencies.

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“…By the feedback of operational amplifier, two bipolar transistors operate at unequal current densities. The difference between their base-emitter voltages is proportional to the absolute temperature, yielding the proportional to absolute temperature ( 𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃 ) [9][10][11][12][13][14][15]. Typically, the base-emitter voltage is expressed as follow.…”

Section: Introductionmentioning

confidence: 99%

A -80dB PSRR 1.166ppm/°C bandgap voltage reference with improved high-order temperature compensation

Meng

Xiao

Yao

et al. 2023

IEICE Electron. Express

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A novel high precision and high PSRR bandgap voltage reference with improved high-order temperature compensation is proposed in this paper. An accurate curvature compensation topology is designed to compensate the reference voltage in the high and low temperature sections respectively. A pre-regular circuit is deployed to improve the PSRR and enlarge input voltage range. Implemented with TSMC 0.18um process, this design achieves an ultra-low temperature coefficient (TC) of 1.166ppm/°C from −40 °C to 125 °C with a high PSRR of -80dB at 1KHz.

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Design of a Bandgap Reference with Low Temperature Drift and High PSRR

Cited by 6 publications

References 13 publications

A -89dB PSRR 1.064ppm/°C bandgap voltage reference based on curvature compensation

A -89dB PSRR 1.064ppm/°C bandgap voltage reference based on curvature compensation

A Sub-1V High PSRR Bandgap Voltage Reference with Temperature Compensation for Low Dropout Regulator

A -80dB PSRR 1.166ppm/°C bandgap voltage reference with improved high-order temperature compensation

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