LM335D Temperature Sensor IC, Precision Analog Temperature Sensor, TO-92 Package

LM335D Overview

The LM335D is a precision temperature sensor designed to provide an accurate analog voltage output proportional to absolute temperature. This device operates over a wide temperature range with a linear output scale, making it ideal for precise temperature monitoring and control in industrial and electronic applications. Its voltage output is directly calibrated in Kelvin, eliminating the need for external calibration or compensation. The robust design and ease of integration make it a reliable choice for engineers and sourcing specialists looking for dependable temperature sensing solutions. For more details, visit IC Manufacturer.

LM335D Technical Specifications

LM335D Key Features

• Precision temperature sensing: Outputs a voltage directly proportional to absolute temperature with a scale factor of 10 mV/K, enabling straightforward temperature measurement without complex calculations.
• Wide operating voltage range: Supports supply voltages from 4 V up to 30 V, allowing flexible integration into various power systems and minimizing design constraints.
• Low current consumption: Typical current draw of 400 ??A contributes to energy-efficient designs, ideal for battery-powered and low-power industrial applications.
• Robust temperature range: Operates reliably from -40??C to +100??C, suitable for harsh industrial environments and outdoor temperature monitoring.

Typical Applications

• Industrial temperature monitoring and control systems require precise and linear temperature sensing to maintain operational safety and efficiency.
• Environmental sensing devices where accurate ambient temperature measurement is critical for data logging and analysis.
• HVAC systems use the sensor to regulate heating and cooling by providing accurate temperature feedback to controllers.
• Consumer electronics for thermal management to prevent overheating and enhance device reliability.

LM335D Advantages vs Typical Alternatives

This sensor offers a direct Kelvin-based voltage output with high linearity and precise accuracy, reducing the need for extensive calibration compared to thermistors or other temperature sensors. Its broad supply voltage range and low current consumption improve design flexibility and power efficiency. The rugged TO-92 package and wide temperature operation make it a reliable option for industrial environments, standing out in sensitivity, ease of integration, and stable performance.

LM335D Brand Info

The LM335D is a widely recognized temperature sensor originally introduced by Texas Instruments and is now manufactured by various semiconductor suppliers under standard specifications. Known for its precision and robustness, this device has become a benchmark in temperature sensing solutions across industrial and commercial sectors. Its proven track record and compatibility with a variety of systems make it a preferred choice among engineers for accurate temperature measurement.

FAQ

What is the output voltage range of the LM335D and how does it correlate to temperature?

The device outputs a voltage that increases linearly with absolute temperature at a scale factor of 10 mV per Kelvin. This means the output voltage ranges approximately from 2.73 V at -40??C to 3.75 V at 100??C, making it straightforward to convert voltage readings into temperature values in Kelvin.

What supply voltage range does the LM335D support for optimal operation?

The temperature sensor operates reliably over a wide supply voltage range from 4 V to 30 V