banner background image

Resistance Temperature Detectors (RTDs)

ADI partners with customers to Instrument the Future. Leveraging industry-leading capabilities, we enable technological advances, further scientific discovery, and improve quality of life. ADI delivers complete solutions from antenna-to-bits and measurement-to-information.

How Analog Devices Drives Customer Value

Combining the proper tools, purpose-developed knowledge bases, and customizable solutions, Analog Devices’s precision technology signal chains enable easy adaptation. Each signal chain allows for simple tailoring to suit each unique application need.

This content should highlight direct quotes from customer testimonials that will provide further evidence of ADI’s leadership in this space.

Tom Bui

Case Study Title

Case study summary that describes the customer’s problem and how ADI helped to solve it.

Read More

Signal Chains


Click on a part in the diagram below

An RTD, or resistance temperature detector, is a sensor used to measure temperature. Made from either platinum, copper, or nickel, RTDs have a repeatable resistance vs. temperature relationship and an operating temperature range of –200°C to +850°C. RTDs contain a resistor that changes resistance value as its temperature changes. They have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy, repeatability, and stability. Platinum is a noble metal and has the most stable resistance-temperature relationship over the largest temperature range and is therefore more common than copper or nickel RTDs.

The PT100 is one of the most popular and accurate RTD sensors. Not only does it provide good accuracy, it also provides excellent stability and repeatability. Most standard PT100 sensors comply with the DIN IEC Class B standard. A PT100 sensor is also relatively immune to electrical noise and therefore well suited for temperature measurement in industrial environments, especially around motors, generators, and other high voltage equipment. Because RTDs have an accuracy of better than 0.1°C and repeatability, they are slowly replacing thermocouples in industrial applications below 600°C.

Reference Designs

Featured Products