Design of a CMOS temperature sensor with current output

A. Kolling, Arjan Kölling, Frans Bak, Piet Bergveld, E. Seevinck, Evert Seevinck

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    In this paper a CMOS temperature-to-current converter is presented of which the output current is the difference between a PTC current and an NTC current. The PTC current is derived from a PTAT cell, while the NTC current is derived from a threshold voltage reference source. It is shown that this way of current subtraction diminishes to a certain extent the effects of the thermal dependence of the resistors used.
    Original languageUndefined
    Pages (from-to)645-649
    Number of pages5
    JournalSensors and actuators. A: Physical
    Issue numberA21
    Publication statusPublished - 1990


    • IR-70583
    • METIS-112177

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