This paper presents a current reference consuming 4.62 nW at 0.5 V with an active area of $0.0102 \mathrm{~mm}^{2}$ in $0.18 \mu \mathrm{m}$ standard CMOS technology. Iref is generated by applying PVT invariant voltag...
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ISBN:
(数字)9798350388138
ISBN:
(纸本)9798350388145
This paper presents a current reference consuming 4.62 nW at 0.5 V with an active area of $0.0102 \mathrm{~mm}^{2}$ in $0.18 \mu \mathrm{m}$ standard CMOS technology. Iref is generated by applying PVT invariant voltage across a temperature-compensated resistor. The proposed design achieves the applied voltage below 5 mV by using a self-cascode configuration and improves the trade-off relationship between power and area while maintaining the PVT variation of the previous resistor-based $I_{\text {REF }}$ generation. $I_{\text {REF }}$ from 10 chips shows a level of 4.2 nA, a temperature coefficient (TC) of 297ppm $/{ }^{\circ} \mathrm{C}$ from $-40^{\circ} \mathrm{C}$ to $125^{\circ} \mathrm{C}$, and a line sensitivity of $0.27 \% / \mathrm{V}$ from 0.5 V to 2 V.
This paper presents a cryo-CMOS dynamic-precision time-interleaved (TI) SAR ADC for FDM-based qubit readout. The ADC includes on-chip background calibration engines to compensate for dynamic inter-channel mismatches o...
This paper presents a cryo-CMOS dynamic-precision time-interleaved (TI) SAR ADC for FDM-based qubit readout. The ADC includes on-chip background calibration engines to compensate for dynamic inter-channel mismatches of gain, offset, and sampling phases. To mitigate the effect of increased threshold voltage at cryogenic temperature, comparators with native NMOS input stage and sampling switches with low threshold voltage transistors were employed. The implemented IC in 40nm CMOS is verified at 4K and shows Nyquist-rate SNDRs of 50.1dB, 45. 9dB, 44.0dB, and 38.3dB with 10b, 9b, 8b, and 7b modes at the sampling rates of 500MHz,820MHz, 900MHz, and 1200MHz, respectively. The ADC consumes 5.91mW while achieving the Walden FoM of 45.1fJ/conv.-step with 10b mode.
This work presents a power-efficient latticebased crypto-processor for IoT edge devices supporting both homomorphic encryption (HE) and post-quantum cryptography (PQC) algorithms. The chip incorporates a reconfigurabl...
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ISBN:
(数字)9798350388138
ISBN:
(纸本)9798350388145
This work presents a power-efficient latticebased crypto-processor for IoT edge devices supporting both homomorphic encryption (HE) and post-quantum cryptography (PQC) algorithms. The chip incorporates a reconfigurable architecture on a unified number system to effectively reduce the size of modulo index. It also employs a power-efficient modular arithmetic block and a scheduling for pipelined processing. The implemented chip in 28 nm CMOS achieves the state-of-the-art power efficiencies both in HE and PQC.
Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitati...
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Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative
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