A curvature-compensated CMOS bandgap with negative feedback technique

Li, Xiaochao; Zhou, Liangxi; Chen, Yihui; Zhang, Ying; Cao, Chunhui; Guo, Donghui

doi:10.1016/j.mejo.2016.03.011

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Hence various curvature compensation techniques have been devised, such as piecewise compensation [11,12,13,14] and high-order curvature compensation [15,16,17,18]. However, the pursuit of lower TC comes with trade-offs.…”

Section: Introductionmentioning

confidence: 99%

A 0.98ppm/°C, high PSR, low noise curvature-compensated CMOS bandgap reference with resistor-less low-pass filter

Ye,

Fang,

et al. 2024

IEICE Electron. Express

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In this paper, we proposed a 0.98-ppm/°C, high power supply rejection (PSR), low-noise and curvature-compensated bandgap reference with a resistor-less low-pass filter in 0.18-𝜇m CMOS process. One prominent feature of the circuit is a low-temperature coefficient (TC) measuring less than 1-ppm/°C, achieved through the implementation of high-order curvature compensation. Another notable enhancement is the incorporation of a resistor-less low-pass filter, which effectively improves the PSR and noise performance at medium and high frequencies. Experimental results indicate that the circuit is able to realize an average output reference voltage of 1.21V @4V and an average low TC of 0.98-ppm/°C @ -35°C-135°C at different corners. In addition, AC simulation results show that the circuit has a high PSR over the full frequency range and is capable of achieving PSR of -143.

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Section: Introductionmentioning

confidence: 99%

A 0.98ppm/°C, high PSR, low noise curvature-compensated CMOS bandgap reference with resistor-less low-pass filter

Ye,

Fang,

et al. 2024

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…Curvature compensation can greatly improve the precision of bandgap voltage reference but in this case the circuit design will be more complicated [4,5,6]. Besides, the design of operational amplifier is not easy, and the problem of high power consumption still exists.…”

Section: Introductionmentioning

confidence: 99%

Design of a Bandgap Voltage Reference Working in Subthreshold Region with Low Voltage, High Precision in a Wide Temperature Range

Dai¹,

Li²,

An³

et al. 2018

dtetr

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Abstract. In this paper, a bandgap voltage reference working with high precision in a wide temperature range is proposed. The proposed bandgap voltage reference adopts self-biased structure without using resistor and operational amplifier. It adopts 6 stages of the proportional to absolute temperature circuit to increase temperature range. And it uses linearity compensation circuit to improve the temperature coefficient. Supported by GSMC 0.13 µm technology, with 1.2V supply voltage, the proposed bandgap voltage reference can generate a steady 66 mV reference voltage. Within the temperature range of -100 to 145 °C, the temperature coefficient is 8.5486 ppm/°C and the line sensitivity is 0.19245 mV/V. And the bandgap voltage reference covers a core area of 0.00396 mm 2 .

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A 0.6-V, 1.56-nW, 5.87-ppm/°C, 0.23%/V CMOS-Only Subthreshold Voltage Reference with the Threshold Voltage Difference

Xin

Cai

et al. 2022

Circuits Syst Signal Process

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A curvature-compensated CMOS bandgap with negative feedback technique

Cited by 5 publications

References 7 publications

A 0.98ppm/°C, high PSR, low noise curvature-compensated CMOS bandgap reference with resistor-less low-pass filter

A 0.98ppm/°C, high PSR, low noise curvature-compensated CMOS bandgap reference with resistor-less low-pass filter

Design of a Bandgap Voltage Reference Working in Subthreshold Region with Low Voltage, High Precision in a Wide Temperature Range

A 0.6-V, 1.56-nW, 5.87-ppm/°C, 0.23%/V CMOS-Only Subthreshold Voltage Reference with the Threshold Voltage Difference

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