Comparison of circuits for linearizing the temperature indications of thermistors
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Updated: Jul 2, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
Published on: June 3, 2015
1Mechanical Engineering Department, Tufts University, Medford, Massachusetts 02155, USA.
Abstract:
Eight circuits designed for producing a signal that is a linear function of temperature change, utilizing a single thermistor as the temperature-sensitive element, are examined. All are found equal in linearizing capability, including five circuits containing operational amplifiers. This finding does not apply to certain linearizing circuits such as those containing logarithmic amplifiers, some of which may be expected to have a linearizing capability greater than that of the circuits examined.
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