The LM335Z is a precision temperature sensor from STMicroelectronics, which provides a direct Celsius temperature measurement through an analog output. This sensor operates with a voltage range of 4V to 30V and offers a calibrated directly proportional voltage output of 10 mV/°K. This feature enables easy interfacing with readout or control circuitry without the need for complex calibration in analog circuitry.

Key Features

• Directly Calibrated in Kelvin: The LM335Z is calibrated to provide a direct readout in Kelvin, which simplifies the arithmetic for temperature conversion and control.
• Linear +10 mV/°K Scale Factor: The linearity of the output simplifies circuit design by allowing the use of standard analog-to-digital converters to interpret the output voltage.
• Wide Operating Temperature Range: This sensor can measure temperatures from -40°C to +100°C, making it suitable for a wide range of applications.
• Low Impedance Output: The low output impedance of the sensor allows for better signal integrity over long cable runs and reduces the effect of load variations.
• Less than 1Ω Dynamic Impedance: The dynamic impedance ensures stable performance over the entire temperature range.
• Operates from 4V to 30V: A broad power supply range provides flexibility in system design and ensures compatibility with most control systems.

Applications

The LM335Z is a versatile temperature sensor that can be used in a variety of applications. It is particularly well-suited for:

• Temperature sensing and control in consumer, automotive, and industrial electronics
• Environmental controls and HVAC systems
• Data logging and temperature monitoring systems
• Electronic test and measurement equipment
• Battery management and thermal protection

With its simple three-pin TO-92 package, the LM335Z is easy to integrate into a wide range of products. Its robust design and ease of use make it an excellent choice for engineers and designers looking for a reliable temperature sensing solution.