TMP235

The TMP235 is a high-accuracy digital temperature sensor manufactured by Texas Instruments, designed for precise thermal monitoring in a wide range of applications. It features an integrated analog-to-digital converter (ADC) that provides a 12-bit resolution output, enabling temperature measurements with an accuracy of ±0.5°C over the operating range of –40°C to +125°C. The device operates from a supply voltage of 2.7 V to 5.5 V, making it compatible with both low-power and standard logic systems. This sensor communicates via a 2-wire SMBus-compatible serial interface, allowing for easy integration into existing system architectures without requiring additional hardware. Its low power consumption—typically 180 µA during conversion—makes it ideal for battery-powered or energy-sensitive designs. The TMP235 also includes a programmable alert function that generates an interrupt signal when the measured temperature exceeds user-defined upper or lower thresholds, enhancing system reliability through real-time thermal event detection. Key features include a built-in self-test mechanism for diagnostic verification, support for multiple I²C addresses to enable multi-sensor configurations on a single bus, and a compact 6-pin SOT-23 package for space-constrained applications. The device automatically enters a low-power standby mode when not actively converting, further optimizing energy usage. Applications for the TMP235 span industrial control systems, consumer electronics, computing platforms, automotive electronics, and medical devices where accurate and reliable temperature sensing is critical. It is commonly used in power management modules, server racks, and embedded systems to monitor component temperatures and prevent overheating. In addition, its compatibility with industry-standard protocols ensures seamless integration into modern embedded designs using microcontrollers or digital signal processors. With robust performance across varying environmental conditions and minimal external component requirements, the TMP235 offers a cost-effective and efficient solution for precision temperature monitoring needs.