DocumentCode
3606201
Title
A CMOS Thermistor-Embedded Continuous-Time Delta-Sigma Temperature Sensor With a Resolution FoM of 0.65 pJ 
C , which merges these two building blocks into one, is proposed for a hardware- and energy-efficient temperature acquisition. The thermistor-based sensing front-end is reused in a 2nd-order 1 bit CTDSM to attain a high-resolution, low hardware complexity, and energy-efficient temperature sensing. Furthermore, a resistor-ladder with a switch on-resistance compensation scheme is proposed to implement the trimming circuit. Over a range of -45°C ~ 125°C, the proposed smart temperature sensor consumes 64.5 μW from 1.5 V supply voltage and achieves a resolution around 0.01°C rms (1 σ) temperature resolution with a single conversion time of 100 μs. The corresponding resolution FoM is 0.65 pJ°C<sup>2</sup>. With 1-point trimming, this design achieves ±1°C temperature inaccuracy; this inaccuracy can be further improved to ±0.4°C with additional batch calibration.</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Keywords</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>CMOS integrated circuits; analogue-digital conversion; delta-sigma modulation; temperature sensors; thermistors; CMOS thermistor-embedded continuous-time delta-sigma temperature sensor; analog-to-digital converter; building blocks; energy-efficient temperature sensing; power 64.5 muW; resistor-ladder; sensing front-end; switch on-resistance compensation scheme; temperature-to-digital conversion; thermistor-embedded continuous-time delta-sigma modulator; time 100 mus; trimming circuit; voltage 1.5 V; Modulation; Resistance; Resistors; Switches; Temperature sensors; Thermistors; Delta-sigma modulator; Wien-bridge; operational amplifiers; smart sensor; thermistor-embedded; trimming technique;</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>fLanguage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>English</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Journal_Title</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Solid-State Circuits, IEEE Journal of</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Publisher</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>ieee</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>ISSN</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>0018-9200</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Type</span></div><div class='col-12 col-md-9 leftDirection leftAlign'><h2 class='mb-0 fw-semibold'>jour</h2></div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>DOI</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>10.1109/JSSC.2015.2470517</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Filename</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>7272129</div></div>
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