TY - JOUR
AU - Mahapatra, Rajat
AB - This work presents a time-mode smart temperature sensor in a standard 180 nm CMOS process, intended for on-chip thermal monitoring applications. A new temperature-to-pulse converter (TPC) is proposed utilising programmable temperature compensation devices, where a dual delay-line configuration is adopted, namely sensor and reference delay-lines. The proportional to absolute temperature (PTAT) delay offered by the sensor delay-line has a temperature coefficient (TC) of 720 ppm/°C, whereas almost constant delay possessed by the reference delay-line has a TC of 60 ppm/°C, over 0–100 °C temperature range. The proposed 1st-order ΔΣ\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\Delta \Sigma$$\end{document} time-to-digital converter (TDC) serves as the smart sensor readout, where a novel delay-cell is proposed using multipath approach. The projected ΔΣ\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\Delta \Sigma$$\end{document} TDC achieves 30 ns full-scale range at 9 ps resolution. The dual delay-line configuration in the TPC and the dynamic element matching in the ΔΣ\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\Delta \Sigma$$\end{document} TDC bound the inaccuracy of the proposed smart temperature sensor to ± 0.68  °C. The sensor shows a resolution of 0.03 °C at 0.5 μs\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\upmu \hbox {s}$$\end{document} conversion time.
TI - CMOS time-mode smart temperature sensor using programmable temperature compensation devices and ΔΣ\documentclass[12pt]{minimal} \usepackage{amsmat ...
JF - Analog Integrated Circuits and Signal Processing
DO - 10.1007/s10470-019-01544-5
DA - 2020-01-09
UR - https://www.deepdyve.com/lp/springer-journals/cmos-time-mode-smart-temperature-sensor-using-programmable-temperature-12ZFcQqIgi
SP - 97
EP - 109
VL - 102
IS - 1
DP - DeepDyve
ER -