An all-digital smart temperature sensor with auto-calibration in 65nm CMOS technology

Chung, Ching-Che; Yang, Cheng-Ruei

doi:10.1109/iscas.2010.5537625

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…For these simulations, the technology spread and devices mismatch at the supply voltage of 1.2 V were considered. The presence of a large spread in the sensor output voltage plots is primarily due to the dominant threshold voltage V th (see Equations (16) and (17)) [29]. However, it can be seen in Figure 6b that, irrespective of wide process spread, the calculated temperature inaccuracy is within the limit of ±1 • C for around 98% of the total Monte Carlo runs of the proposed temperature sensor.…”

Section: Post Layout Simulation Resultsmentioning

confidence: 94%

“…In the aforementioned literature, either the single-point or the two-point calibration method is used to adjust the attribute of the temperature sensor. In addition to these conventional calibration approaches, researchers have also proposed methods such as self-calibration [15,16] and/or auto-calibration [17][18][19], to further reduce the complexity of the post fabrication calibration process.…”

Section: Introductionmentioning

confidence: 99%

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A 40 nW CMOS-Based Temperature Sensor with Calibration Free Inaccuracy within ±0.6 °C

Chouhan

Halonen

2019

Electronics

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In this study, a temperature equivalent voltage signal was obtained by subtracting output voltages received from two individual temperature sensors. These sensors work in the subthreshold region and generate the output voltage signals that are proportional and complementary to the temperature. Over the temperature range of −40 ∘C to +85 ∘C without using any calibration method, absolute temperature inaccuracy less than ±0.6 ∘C was attained from the measurement of five prototypes of the proposed temperature sensor. The implementation was done in a standard 0.18 μ m CMOS technology with a total area of 0.0018 mm 2. The total power consumption is 40 nW for a supply voltage of 1.2 V measured at room temperature.

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Section: Post Layout Simulation Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

A 40 nW CMOS-Based Temperature Sensor with Calibration Free Inaccuracy within ±0.6 °C

Chouhan

Halonen

2019

Electronics

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“…In all-digital temperature sensors [5], [25], the two-temperature-point calibration is required in every sensor; thus, calibration cost is very large in on-chip thermal sensing applications. A current-output temperature sensor [6] does not have a linear temperature reading and is sensitive to process variation, which requires more effort and cost for after-process calibration.…”

Section: Resultsmentioning

confidence: 99%

Low-Power Die-Level Process Variation and Temperature Monitors for Yield Analysis and Optimization in Deep-Submicron CMOS

Zjajo

Barragán

Gyvez

2012

IEEE Trans. Instrum. Meas.

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Abstract-This paper reports design, efficiency, and measurement results of the process variation and temperature monitors for yield analysis and enhancement in deep-submicron CMOS circuits. Additionally, to guide the verification process with the information obtained through monitoring, two efficient algorithms based on an expectation-maximization method and adjusted support vector machine classifier are proposed. The monitors and algorithms are evaluated on a prototype 12-bit analog-todigital converter fabricated in standard single poly six-metal 90-nm CMOS.

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“…Note that 1 C accuracy translates to 2 W power savings. 46 The average error in Table III (across all chip locations) of each method is reported as we vary the sensor noise level. As we increase the noise level, the estimation accuracy generated by KF and EKF degrades more rapidly in contrast to UKF, which generate accurate thermal estimates (within 0.7 C) under all circumstances.…”

Section: Temperature Trackingmentioning

confidence: 99%

Adaptive Thermal Monitoring of Deep-Submicron CMOS VLSI Circuits

Zjajo¹,

Meijs²,

Leuken³

2013

Journal of Low Power Electronics

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In integrated circuits accurate runtime sensing of on-chip temperature is required to establish efficient dynamic thermal management techniques. In this paper, we propose novel sensor allocation and placement algorithm and thermal sensing technique for indirect temperature estimation at arbitrary locations. As the experimental results indicate, the runtime thermal estimation method reduces temperature estimation errors by an order of magnitude.

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An all-digital smart temperature sensor with auto-calibration in 65nm CMOS technology

Cited by 11 publications

References 8 publications

A 40 nW CMOS-Based Temperature Sensor with Calibration Free Inaccuracy within ±0.6 °C

A 40 nW CMOS-Based Temperature Sensor with Calibration Free Inaccuracy within ±0.6 °C

Low-Power Die-Level Process Variation and Temperature Monitors for Yield Analysis and Optimization in Deep-Submicron CMOS

Adaptive Thermal Monitoring of Deep-Submicron CMOS VLSI Circuits

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