Comparative study of Curvature Correction in CMOS Bandgap Reference Circuit

Anushree,; Kaur, Jasdeep

doi:10.1109/indicon49873.2020.9342493

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Following the above, the smallest capacitor C 0 was set to 500 fF. The reference voltage V REF , to which the capacitors C 7 , …, C 0 are linearly charged, has been set to 1.2 V, which is around the typical value for the real bandgap voltage reference circuits [ 37 , 38 , 39 , 40 , 41 , 42 ].…”

Section: The Stb-tdc Circuit Simulationsmentioning

confidence: 99%

A New Successive Time Balancing Time-to-Digital Conversion Method

Jurasz,

Kościelnik,

Szyduczyński

et al. 2023

Sensors

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This paper presents a new self-clocked time-to-digital conversion method based on a binary successive approximation (SA) algorithm. Its novelty consists in combining fully clockless operation with direct conversion of the measured time interval. The lack of any reference clock makes the presented method potentially predisposed to low-power solutions. Furthermore, its circuit representation is extremely simple, thereby the ability to direct conversion of time intervals is not burdened by a significant amount of components. The method is intended to measure relatively long time intervals, i.e., hundreds of microseconds. Therefore, it is suitable for e.g., biomedical applications using time-mode signal processing.

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Section: The Stb-tdc Circuit Simulationsmentioning

confidence: 99%

A New Successive Time Balancing Time-to-Digital Conversion Method

Jurasz,

Kościelnik,

Szyduczyński

et al. 2023

Sensors

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A 3.95 ppm/°C 7.5 μW Second-Order Curvature Compensated Bandgap Reference in 0.11 μm CMOS

Guo-shun

Lei

et al. 2022

Electronics

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In order to meet the requirements of modern portable electronics for high accuracy and low power consumption of bandgap reference circuits, a new low-voltage bandgap reference with a second-order compensated circuit at 1.8 V is proposed. It features a new self-biased fully symmetric differential operational amplifier circuit with the help of split transistors for achieving low power consumption and high accuracy; by adding a new sub-threshold compensated circuit. The results of simulation show that the temperature coefficient of the second-order circuit is 3.95 ppm/°C in the temperature range of −40 to 125 °C, and the power consumption is only 7.5 μW; this meets both the requirements of high precision and low power consumption. At the same time, the output noise voltage of the design is less than 30 μV/sqrt (Hz) at a frequency of 100 Hz, and the low-frequency supply voltage rejection ratio is −103 dB@100 Hz; these are acceptable for bandgap reference circuits.

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Comparative study of Curvature Correction in CMOS Bandgap Reference Circuit

Cited by 2 publications

References 14 publications

A New Successive Time Balancing Time-to-Digital Conversion Method

A New Successive Time Balancing Time-to-Digital Conversion Method

A 3.95 ppm/°C 7.5 μW Second-Order Curvature Compensated Bandgap Reference in 0.11 μm CMOS

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