A Time-Domain SAR Smart Temperature Sensor With Curvature Compensation and a 3σ Inaccuracy of −0.4°C ∼ +0.6°C Over a 0°C to 90°C Range

Chen, Poki; Chen, Chun‐Chi; Peng, Yu-Han; Wang, Kaiming; Wang, Yu-Shin

doi:10.1109/jssc.2010.2040658

Cited by 101 publications

(88 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The measuring results prove the power efficiency of the A_TS structure and the benefit on the total power consumption of the primary-auxiliary temperature sensing scheme. Table I lists the performance comparison of the proposed temperature sensors and several existing works [9], [11], [13], [15]. The measurement results and comparison table show that the primary temperature sensor with a SAR ADC occupies small chip area without external digital circuit, and it senses the thermal condition in an energy-efficient manner.…”

Section: Experiments Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Primary-Auxiliary Temperature Sensing Scheme for Multiple Hotspots in System-on-a-Chips

et al. 2014

View full text Add to dashboard Cite

A primary-auxiliary temperature sensing scheme for system-on-a-chip application is proposed in this paper. Taking advantage of the high accuracy and linearity of the analog primary temperature sensors and low production cost of the digital auxiliary temperature sensors, this sensing scheme monitors multiple hotspots in a highly integrated system chip with small area and low power. A cost efficient calibration strategy based on the difference of calibration complexity and sensitivity to the MOSFET aging between the primary and auxiliary temperature sensors is also presented in this paper. Both the temperature sensor prototypes are designed and fabricated with a 90-nm CMOS process technology. The core area of the primary/auxiliary temperature sensors is 0.039/0.001 mm 2 , and consumed energy per conversion is 20.06/0.136 nJ/S with a 1 V supply voltage and 100-kS/s conversion rate. The performance of the temperature sensors and the accuracy improvement of the proposed calibration method are proved with the measurement results.

show abstract

Section: Experiments Resultsmentioning

confidence: 99%

“…and a constant one [11], is proposed. Though this modification saves the conversion time, many delay cells are still needed to form the delay lines, and they occupy the most area of the temperature sensor.…”

Section: Introductionmentioning

confidence: 99%

A Primary-Auxiliary Temperature Sensing Scheme for Multiple Hotspots in System-on-a-Chips

et al. 2014

View full text Add to dashboard Cite

show abstract

“…This indicates that the current source can compensate for temperature variation, as well as process variation. The temperature variation expression in [3] was obtained for nominal process conditions and does not account for the design parameters' deviation caused by process variation [9]. The output frequency drift of a ring oscillator can be measured and the drift shows a natural relation (in MHz/ • C) between temperature and frequency.…”

Section: A Temperature Sensormentioning

confidence: 99%

“…It creates hotspots and thermal gradient with their associated problems in radio frequency integrated circuits (RFICs). [1]- [3] described the thermal problems found in dense microprocessor ICs. CMOS RFICs usually have redundant performance margin to achieve the required performance under every process and runtime condition, which increases the overall design complexity.…”

Section: Introductionmentioning

confidence: 99%

“…The main drawbacks of ATS include large area, high power consumption and variation due to process and supply voltage. In the recent years, time-domain digital temperature sensors (DTS) [2], [3], [8]- [10] were developed for SoC applications that do not need high-precision temperature information. For these applications, DTS's have been reported to have benefit of small area, low power and low design complexity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Integrated temperature sensor for reconfigurable radio frequency synthesizer

Gaggatur

Banerjee

2015

2015 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT)

View full text Add to dashboard Cite

Temperature variations significantly affect the performance and reliability of RF integrated circuits, which necessitates for thermal management in RF circuits. In this paper, an integrated analog temperature sensor (ATS) which operates with simple, low-cost one-point calibration is proposed. The temperature to voltage conversion is achieved in two steps i.e. temperature to frequency, followed by frequency to voltage conversion. The output voltage can be used to compensate the temperature dependent errors in the high frequency circuits, thereby reducing the performance degradation due to thermal gradient. The proposed ATS exhibits high sensitivity of 1.182 MHz/ • C to temperature in the range of -20 • C to 120 • C. The errors due to supply and process variations after one-point calibration are within ±0.015 • C. The integrated sensor was implemented in the 0.13µm CMOS process. It occupies a core area of 0.0076 mm 2 while consuming 756 µW from a 1.2 V supply.

show abstract

Mobility-based Time References for Wireless Sensor Networks

Foti¹

2013

View full text Add to dashboard Cite

A Time-Domain SAR Smart Temperature Sensor With Curvature Compensation and a 3σ Inaccuracy of −0.4°C ∼ +0.6°C Over a 0°C to 90°C Range

Cited by 101 publications

References 15 publications

A Primary-Auxiliary Temperature Sensing Scheme for Multiple Hotspots in System-on-a-Chips

A Primary-Auxiliary Temperature Sensing Scheme for Multiple Hotspots in System-on-a-Chips

Integrated temperature sensor for reconfigurable radio frequency synthesizer

Mobility-based Time References for Wireless Sensor Networks

Contact Info

Product

Resources

About