Analog Devices Inc. TMP35GSZ Temperature Sensor

The TMP35GSZ is a precision centigrade temperature sensor manufactured by Analog Devices Inc., a leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits. This sensor provides a voltage output that is linearly proportional to the Celsius (centigrade) temperature, making it an ideal choice for low-cost, low-power temperature sensing applications.

Unlike other sensors that require an external calibration to provide accurate temperature readings, the TMP35GSZ is factory-calibrated and requires no external components to achieve its high accuracy. It is designed to deliver a typical accuracy of ±2°C without the need for calibration or external component matching. This simplifies the design and reduces the overall system cost and complexity.

The TMP35GSZ operates at a nominal voltage supply of 5V, but can function with a supply voltage range from 3V to 30V. This wide operating range makes it suitable for a variety of power environments and battery-operated systems. The low supply current of less than 50 µA (max) and the low self-heating of less than 0.1°C in still air make this sensor particularly useful for portable applications.

One of the key features of the TMP35GSZ is its linear voltage output of 10 mV/°C, which translates to a straightforward interface with reading circuitry. This feature eliminates the need for complex calculations or lookup tables to process the temperature data. The sensor is capable of measuring temperatures from -40°C to +125°C, providing a wide range for diverse applications.

The TMP35GSZ comes in a surface-mount package, specifically the 3-lead SOT-23, which is known for its small footprint and suitability for automated assembly processes. This packaging makes it an excellent choice for space-constrained applications such as handheld devices, environmental control systems, and other embedded electronics.

Overall, the TMP35GSZ temperature sensor from Analog Devices Inc. offers a combination of accuracy, simplicity, and versatility, making it a top choice for designers who require reliable temperature monitoring without the hassle of complex interfacing or calibration procedures.