Improved accuracy and sensitivity in new Texas Instruments temperature sensors

Texas Instruments has expanded its temperature sensing range by adding linear thermistors that offer an accuracy increase of up to 50% over negative temperature coefficient (Ntc) thermistors.

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Texas Instruments temperature sensors

Available at a similar price point to negative temperature coefficient (NTC) thermistors, the new temperature sensors from Texas Instruments offer significantly more value than NTCs. Texas Instruments temperature sensors offer significantly more value than NTCs, minimising design time, reducing component count and increasing system performance.

Increased system performance and reliability

NTC thermistors provide less accurate temperature readings due to their low sensitivity and high tolerance of resistance to extreme temperatures. To compensate for these issues, many engineers perform three-point calibration across the entire temperature range or use multiple thermistors to monitor different temperature ranges, but these approaches can still lead to unreliable temperature readings, which in turn can result in systems shutting down before they reach their true thermal limit

TI's new thermistors, on the other hand, offer reliable and highly accurate thermal measurements, particularly at temperatures above 80°C. They allow single-point calibration, which maximises system performance and simplifies design. This is particularly important in industrial, automotive and consumer applications where accurate, real-time temperature readings are critical to system performance and protection.

In addition, they typically have a very low drift of 0.5%, thus increasing the reliability of temperature measurements and allowing designers to improve system performance while maintaining operational safety. The thermistor design tool is available on TI.com's thermistor product pages and datasheets, allowing you to quickly and easily calculate temperature resistance values and start your own designs with conversion methods and sample codes.

New sensors reduce costs and system size

By eliminating the need for additional linearisation circuitry or redundant NTC thermistors, TI's new sensors enable engineers to simplify designs, lower system costs and reduce PCB layout size by at least 33% compared to NTC thermistors. In addition, TI's thermistors are one-tenth the size of comparable silicon-based linear thermistors, combined with a low profile and small package area, which allow them to be placed closer to thermal hot spots for faster thermal response and more consistent temperature measurements.

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