Resistorless BJT bias and curvature compensation circuit at 3.4 nW for CMOS bandgap voltage references

Mattia, Oscar E.; Klimach, Hamilton; Bampi, Sérgio

doi:10.1049/el.2013.3417

Cited by 23 publications

(3 citation statements)

References 7 publications

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“…Though bandgap reference succeeds in decreasing temperature sensitivity, 8 the noise performance is extraordinary poor because of the complex structure. Other researches also focus on temperature sensitivity, [9][10][11] and no e®orts have been made in the low-noise direction.…”

Section: Biasing Generatormentioning

confidence: 99%

A Gain-Tunable Output Buffer for Audio-DAC with Common-Mode Output Independent of Gain Variation

Liang

Zhu

2015

J CIRCUIT SYST COMP

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A novel gain-tunable output bu®er for audio-DAC is proposed in this paper. With this proposed architecture, the common-mode output voltage can be independent of gain variation. In practical applications, supply voltage might change. With this proposed architecture, the common-mode output voltage could be set separately, to guarantee that it stays in the mid-scale position of the supply. Therefore, the ability of reaching the maximum output swing for the bu®er features the proposed architecture. In addition, the threshold current reference is utilized to generate bias currents for the other building blocks. Therefore, it is always located in the source position of the signal chain. Its output noise would be ampli¯ed by all the following circuit blocks. To guarantee high-quality performance of the audio-DAC, the output noise of the threshold current reference should be suppressed. In this letter, noise performance of the threshold current reference is analyzed theoretically and improved signi¯cantly. Simulation result shows that the integrated noise current of the threshold current reference can be reduced from 0.61 to 0.15 nA when the integral frequency range sweeps from DC to 50 kHz, i.e., a reduction of 75.4% has been achieved.

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Section: Biasing Generatormentioning

confidence: 99%

A Gain-Tunable Output Buffer for Audio-DAC with Common-Mode Output Independent of Gain Variation

Liang

Zhu

2015

J CIRCUIT SYST COMP

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“…Vref generated in the bandgap is compared with the gate voltage of PM3 to generate the error signal, which is connected to the gate of PM2. High gain of the EA and a accurate Vref are desired to the requirement of the LDO PSRR [9]. Fig.…”

Section: B Bandgap and Ldomentioning

confidence: 99%

Analog Front-end Design of Passive RFID Tags for ISO/IEC 14443 and 15693

Li¹,

Jianpeng²

2015

Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference

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This paper presents a design of analog front-end of passive RFID tags for ISO/IEC 14443 and 15693 by using SMIC 0.18μm 2P4M CMOS process. In order to have better performance, three rectifiers have been designed and compared, LDO and low-pass filter have been designed to obtain a high PSRR and a large range of subcarrier frequency respectively. As the post-layout simulation results showing, this design can satisfy both the ISO/IEC 14443 and 15693, and be adopted in many applications.

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“…Many researches have been carried out on high-performance reference circuits with low temperature coefficient (TC) and high PSRR operation [7][8][9][10]. Conventional voltage references are based on bandgap reference (BGR) circuit, which is one of the most fundamental building blocks in integrated circuits [11][12].…”

Section: Introductionmentioning

confidence: 99%

A Resistorless Voltage Reference with High-order Temperature Curvature Compensation in 55 nm CMOS Process

Zhang²,

Zhang

et al. 2017

Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 20

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This paper presents a temperature/supply stable and resistorless voltage reference for high-precision portable electronic products. the reference obtains a good temperature coefficient over a wide temperature range through high-order curvature compensation. In order to reduce the temperature nonlinearity, the piecewise linear temperature curvature compensation circuit is used. The voltage reference is simulated with 55nm CMOS technology. It operates at the voltage of 2.5V and generates a stable voltage at 0.742V with a minimal temperature coefficient of 3.19ppm/℃ for temperature ranging from -40 to 125℃.

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Resistorless BJT bias and curvature compensation circuit at 3.4 nW for CMOS bandgap voltage references

Cited by 23 publications

References 7 publications

A Gain-Tunable Output Buffer for Audio-DAC with Common-Mode Output Independent of Gain Variation

A Gain-Tunable Output Buffer for Audio-DAC with Common-Mode Output Independent of Gain Variation

Analog Front-end Design of Passive RFID Tags for ISO/IEC 14443 and 15693

A Resistorless Voltage Reference with High-order Temperature Curvature Compensation in 55 nm CMOS Process

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