STMicroelectronics LM335Z Temperature Sensor IC, TO-92, 3-Pin

The STMicroelectronics LM335Z is a precision, two-terminal analogue temperature sensor designed for applications demanding stable and accurate readings. It operates as a zener diode, where its breakdown voltage is directly proportional to absolute temperature, providing a precise output of 10 millivolts per degree Kelvin. This design ensures straightforward integration into analogue circuits without the need for complex signal conditioning.

With a dynamic impedance of less than 1 ohm, the sensor maintains stable performance across a broad operating current range from 450 microamperes to 5 milliamps. This feature allows for flexible circuit design while preserving its critical characteristics. The LM335Z boasts a typical error of less than 1°C over a 100°C temperature span, offering exceptional initial accuracy directly calibrated in degrees Kelvin.

Key Features & Performance

• High Precision: Delivers a 1°C initial accuracy, making it suitable for critical measurement tasks.
• Wide Operating Range: Functions reliably in free air temperatures from -40°C to +100°C.
• Stable Output: Provides a consistent operating output voltage of approximately 2.98 volts.
• Robust Package: Housed in a durable, industry-standard 3-pin TO-92 package for easy mounting and handling.
• Simple Interface: Its analogue voltage output and two-terminal zener operation simplify connection to monitoring and control systems.

Technical Specifications

This sensor is engineered for precision sensing and instrumentation. Its combination of a wide supply voltage range (5V to 40V), excellent linearity, and robust construction makes it a versatile component for developers and engineers.