LM135Z Overview
The LM135Z is a precision temperature sensor designed to provide accurate and linear temperature-to-voltage conversion over a wide operating range. This device offers a calibrated output directly proportional to absolute temperature, simplifying temperature measurement in various industrial and electronic systems. With a robust design that integrates temperature sensing and voltage output, it enables straightforward interfacing with analog-to-digital converters and control systems. Its compact package and reliable performance make it ideal for engineers and sourcing specialists seeking a dependable solution for temperature monitoring. For more detailed procurement and technical information, visit IC Manufacturer.
LM135Z Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature Range | -55??C to +150??C |
| Output Voltage | 10 mV/K (millivolts per Kelvin) |
| Accuracy | ??1??C at 25??C |
| Calibration | Factory calibrated to provide output voltage directly proportional to absolute temperature |
| Package Type | TO-92 (Plastic Transistor Package) |
| Supply Current | Typically 60 ??A |
| Voltage Supply Range | 4V to 30V |
| Linearity | Within ??1??C over full operating temperature |
| Output Impedance | Low, suitable for direct interface with measuring circuits |
LM135Z Key Features
- Precision Absolute Temperature Sensing: Provides a voltage output directly proportional to temperature in Kelvin, enabling high accuracy temperature measurements without additional calibration.
- Wide Operating Temperature Range: Operates reliably from -55??C to +150??C, making it suitable for harsh industrial environments.
- Low Power Consumption: Typical supply current of 60 ??A reduces energy requirements, ideal for battery-powered or low-power applications.
- Simple Integration: Factory calibration and low output impedance allow easy interface with analog-to-digital converters and control systems, reducing design complexity.
Typical Applications
- Temperature monitoring and control in HVAC systems, ensuring accurate environmental sensing to maintain optimal conditions.
- Industrial process control where precise temperature measurement is critical to maintain product quality and system safety.
- Battery management systems in electric vehicles or portable devices to monitor temperature and prevent overheating.
- Medical equipment requiring stable and accurate temperature sensing for patient safety and device reliability.
LM135Z Advantages vs Typical Alternatives
The LM135Z offers superior sensitivity and linearity compared to many traditional temperature sensors, delivering an output voltage proportional to absolute temperature without the need for complex calibration. Its low power consumption and broad voltage supply range enhance system efficiency and enable flexible integration. Additionally, its robust packaging and wide temperature range ensure reliable operation in demanding industrial environments, making it a preferred choice over thermistors or less precise semiconductor sensors.
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LM135Z Brand Info
The LM135Z is a well-established temperature sensor originally developed by National Semiconductor, now part of Texas Instruments. Known for its precision and reliability, this device is widely used across industrial, automotive, and consumer electronics sectors. The brand maintains rigorous quality standards and provides comprehensive technical documentation, ensuring engineers and sourcing specialists can confidently deploy this sensor in temperature-critical applications. The TO-92 package and proven design continue to make the LM135Z a staple in temperature sensing solutions worldwide.
FAQ
What is the primary operating principle of the LM135Z?
The LM135Z operates by producing an output voltage directly proportional to absolute temperature measured in Kelvin. This linear relationship simplifies temperature measurement by converting thermal changes into a corresponding voltage output that can be easily read by analog circuits or microcontrollers.
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How accurate is the LM135Z temperature sensor?
The device offers an accuracy of approximately ??1??C at 25??C, with linearity maintained within this range across its full operating temperature span. This precision reduces the need for external calibration, facilitating ease of use in various applications.
What supply voltage range does the LM135Z support?
The LM135Z