A CMOS temperature sensor with an energy-efficient zoom ADC and an Inaccuracy of ±0.25°C (3s) from −40°C to 125°C

2010 ◽  
Author(s):  
Kamran Souri ◽  
Mahdi Kashmiri ◽  
Kofi Makinwa
Keyword(s):  
Temperature Sensor ◽  
Energy Efficient

scholarly journals LED Rail Signals: Full Hardware Realization of Apparatus with Independent Intensity by Temperature Changes

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1291
Author(s):  
Giuseppe Schirripa Schirripa Spagnolo ◽  
Fabio Leccese
Keyword(s):  
Temperature Sensor ◽  
Energy Efficient ◽  
Light Emitting Diode ◽  
Junction Temperature ◽  
Light Emitting ◽  
Temperature Changes ◽  
Wide Range ◽  
International Regulations ◽  
Long Lifetime ◽  
Set Up

Nowadays, signal lights are made using light-emitting diode arrays (LEDs). These devices are extremely energy efficient and have a very long lifetime. Unfortunately, especially for yellow/amber LEDs, the intensity of the light is closely related to the junction temperature. This makes it difficult to design signal lights to be used in naval, road, railway, and aeronautical sectors, capable of fully respecting national and international regulations. Furthermore, the limitations prescribed by the standards must be respected in a wide range of temperature variations. In other words, in the signaling apparatuses, a system that varies the light intensity emitted according to the operating temperature is useful/necessary. In this paper, we propose a simple and effective solution. In order to adjust the intensity of the light emitted by the LEDs, we use an LED identical to those used to emit light as a temperature sensor. The proposed system was created and tested in the laboratory. As the same device as the ones to be controlled is used as the temperature sensor, the system is very stable and easy to set up.

An Energy-Efficient All-Digital Time-Domain-Based CMOS Temperature Sensor for SoC Thermal Management

2015 ◽  
Vol 23 (8) ◽  
pp. 1508-1517 ◽  
Author(s):  
Young-Jae An ◽  
Dong-Hoon Jung ◽  
Kyungho Ryu ◽  
Seung-Han Woo ◽  
Seong-Ook Jung
Keyword(s):  
Thermal Management ◽  
Time Domain ◽  
Temperature Sensor ◽  
Energy Efficient ◽  
Digital Time

An Energy Efficient Time-Domain Temperature Sensor for Low-Power On-Chip Thermal Management

2014 ◽  
Vol 14 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Young-Jae An ◽  
Kyungho Ryu ◽  
Dong-Hoon Jung ◽  
Seung-Han Woo ◽  
Seong-Ook Jung
Keyword(s):  
Low Power ◽  
Thermal Management ◽  
Time Domain ◽  
Temperature Sensor ◽  
Energy Efficient ◽  
On Chip

scholarly journals A Low Power Energy-Efficient Precision CMOS Temperature Sensor †

Micromachines ◽  
2018 ◽  
Vol 9 (6) ◽  
pp. 257 ◽  
Author(s):  
Rongshan Wei ◽  
Xiaotian Bao
Keyword(s):  
Low Power ◽  
Temperature Sensor ◽  
Energy Efficient

A New Time-Mode On-Chip Oscillator-Based High Linearity and Low Power Temperature Sensor

2015 ◽  
Vol 24 (10) ◽  
pp. 1550155 ◽  
Author(s):  
Di Zhu ◽  
Liter Siek
Keyword(s):  
Power Consumption ◽  
Temperature Coefficient ◽  
Temperature Sensor ◽  
Energy Efficient ◽  
Superior Performance ◽  
Cmos Process ◽  
Linear Temperature ◽  
High Linearity ◽  
Pvt Variations ◽  
On Chip

This paper presents an energy-efficient and high linearity temperature sensor based on the architecture of a simple on-chip oscillator. A self-calibrated block is proposed to compensate the non-linearities of the on-chip oscillator due to PVT variations. In this manner, this on-chip oscillator-based temperature sensor has superior performance over the conventional inverter-chain-based types. In order to generalize the application, no highly linear temperature coefficient resistors are being utilized. The entire circuit is simple and easy to be scaled down. According to the verifications in 65 nm CMOS process, with one-point calibration, this temperature sensor can achieve an inaccuracy within ±1°C in the temperature range from -55°C to 125°C, with a power consumption of only 0.6 μA under 1.2 V supply voltages.

scholarly journals A Pipeline-TDC-Based CMOS Temperature Sensor with a 48 fJ·K2 Resolution FoM

Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1542
Author(s):  
Zhikuang Cai ◽  
Ze Wang ◽  
Wenjing Zhang ◽  
Xin Wang ◽  
Zixuan Wang
Keyword(s):  
Temperature Sensor ◽  
Energy Efficient ◽  
Figure Of Merit ◽  
Average Power ◽  
Cmos Technology ◽  
Duty Cycling ◽  
Chip Area ◽  
Conversion Time ◽  
Programmable Gain ◽  
Time Amplifier

An energy-efficient temperature sensor is important for temperature monitoring in Biomedical Internet-of-things (BIoT) applications. This article presents a time-domain temperature sensor with a pipeline time-to-digital converter (TDC). A programmable-gain time amplifier (PGTA) with high linearity and wide linear range is proposed to improve the resolution of the sensor and to reduce the chip area. The conversion time of the sensor is reduced by the fast TDC that only needs ~26 ns/conversion, which means the sensor is suitable for BIoT applications that commonly use duty cycling mode. Fabricated in a 40 nm standard CMOS technology, the sensor consumes 7.6 μA at a 0.6 V supply and achieves a resolution of 90 mK and a sensitivity of 0.62%/°C in a 1.3 μs conversion time. This translates into a resolution figure-of-merit of 48 fJ·K2. The sensor achieves an inaccuracy of 0.39 °C from −20 °C to 80 °C after two-point calibration. Duty cycling the sensor results in an even lower average power: ~18.6 nW at 10 conversions/s.

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