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|Title:||Delta-Sigma modulated output temperature sensor for 1V voltage supply|
|Abstract:||This work presents a temperature sensor with a digital Delta-Sigma modulated output designed to work at a supply voltage as low as 1V to operate in a temperature range from-20°C to +125°C. A bandgap current reference circuit generates a current proportional to the temperature (PTAT) and a reference current. Both currents are integrated in a capacitor within a Delta-Sigma modulator, resulting in a digital output whose average value is proportional to the temperature. The sensor was designed using the 180nm TSMC technology and occupies an area of 285μm×190μm. Simulations showed a maximum nonlin-earity of 0.31% and a duty cycle variation of 0.531% per Cel-sius. The sensor power consumption is 120μW.|
|Subject:||Sensor de temperatura|
|Editor:||Institute of Electrical and Electronics Engineers|
|Appears in Collections:||FEEC - Artigos e Outros Documentos|
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