Temperature Sensors

Temperature Sensors

Analog Devices offers highly accurate and reliable temperature sensors that provide both analog and digital outputs, making them suitable for industrial, communications, automotive, and digital healthcare applications. Our temperature sensors can interface with external sensors like thermocouples, RTDs, NTCs, and diodes. Temperature switches are available to activate outputs when specific temperature thresholds are reached. With measurement accuracy up to ±0.1°C across a broad temperature range, these sensors are NIST traceable and ready to use without needing extra signal conditioning or calibration. ADI offers various interfaces, including I²C, SPI, 1-Wire, and PWM for digital products, and current and voltage for analog products. Our temperature sensors come in diverse package options, and all undergo testing and calibration during production.

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Analog Temperature Sensors

Analog Devices’ analog temperature sensors provide current or voltage output proportional to the absolute temperature with accuracies of up to ±1°C. Our diverse range of analog output temperature sensors can be used in a broad range of applications with no need for external calibration, and with minimal signal conditioning/conversion circuitry. To better suit your varied design needs, our analog temperature sensors are available in multiple package options.

Digital Temperature Sensors

Analog Devices offers a broad selection of digital temperature sensors with I²C, SPI, and mark space interfaces. For more intricate system design applications, some of these sensors have integrated DACs, ADCs, references, and limit alarm register. All of these digital temperature sensors possess a broad range of uses, including scientific, medical, and aerospace applications, in test and measurement equipment, and in industrial automation.

External Interface Temperature Sensors

Analog Devices provides temperature sensors capable of interfacing with external sensors such as thermocouples, resistance temperature detectors (RTDs), negative temperature coefficient (NTC) thermistors, and diodes. These sensors ensure precise measurements and, with integrated cold junction compensation algorithms, deliver accurate results. The data can be transmitted to users through various interfaces, including I²C, SPI, and 1-Wire.

Fan Speed Controllers

Analog Devices’ fan speed controllers provide all the functionality necessary for a power management system to regulate the speed of a fan via a 2-wire SMBus/I²C interface. Fan speeds are regulated per a system’s required temperature profile resulting in lower fan power consumption, longer battery run time, and lower acoustical generated noise vs. systems that use simple on-off fan control.

Temperature Switches

Analog Devices' temperature switches monitor temperature and activate digital output when measurements exceed the trip point setting. To meet differing design needs, we provide pin selectable, factory set, and user programmable trip point setting options. With support for a wide range of operating temperatures and without the need for external calibration, our portfolio of temperature switches also enables swifter design and production with faster time to market. ADI's temperature switches come in small, low count plastic packages, operate at low supply voltages down to 2.7 V, and are power optimized—consuming typically less than 100 μA of current.