LM135Z

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LM135Z

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SENSOR ANALOG -55C-150C TO92-3

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Package Bag
ProductStatus Active
SensorType Analog, Local
SensingTemperature-Local -55°C ~ 150°C
OutputType Analog Voltage
Resolution 10mV/°K
Accuracy-Highest(Lowest) ±3°C (±5°C)
TestCondition 25°C (-55°C ~ 150°C)
OperatingTemperature -55°C ~ 150°C
MountingType Through Hole
Package/Case TO-226-3, TO-92-3 (TO-226AA)

Tổng quan

Description

The LM135Z is a precision temperature sensor commonly used for a wide range of temperature measurement applications. It provides an output voltage that is linearly proportional to the Kelvin temperature, making it straightforward to convert readings to degrees Celsius or Fahrenheit. The device operates over a wide temperature range, typically from -55°C to +150°C, and offers high accuracy and stability.
Key features of the LM135Z include its linear output characteristic, ease of interfacing with analog-to-digital converters (ADCs), and low cost. The sensor is often used in applications like environmental monitoring, consumer electronics, and industrial temperature control. The LM135Z typically requires a supply voltage of 4V to 30V, making it versatile for various power supply configurations.
The device comes in a TO-92 package, which is compact and suitable for through-hole mounting. Additionally, it can be used for remote temperature sensing applications, given its ability to drive long cables without significant loss of accuracy. Overall, the LM135Z is valued for its simplicity, reliability, and precision in temperature sensing tasks.

Equivalent

The LM135Z is a precision temperature sensor. Equivalent products include the LM235 and LM335 series from Texas Instruments, which offer similar functionality and specifications. Other equivalents might include the AD590 from Analog Devices, the TMP36 from Analog Devices or Texas Instruments, and the DS18B20 from Maxim Integrated, though these may have slightly different features or interfaces. Always check the specific datasheets to ensure compatibility with your application needs.

Features

The LM135Z is a precision, easily-calibrated temperature sensor. Here are its key features:
1. Wide Temperature Range: Operates over a range of -55°C to 150°C, suitable for a variety of applications.
2. High Accuracy: Provides a precise temperature measurement, typically with an accuracy of ±1°C.
3. Linear Output: Produces a linear analog voltage output that is directly proportional to the temperature in Kelvin, simplifying the conversion to other temperature scales.
4. Calibrated Output: Can be easily calibrated to improve accuracy.
5. Low Impedance Output: Offers a low output impedance, making it less susceptible to noise and capable of driving loads directly.
6. Wide Supply Voltage Range: Operates with a supply voltage range of 4V to 30V, offering flexibility in different power environments.
7. Robust Package: Available in a durable TO-92 package, which is suitable for through-hole mounting.
These features make the LM135Z suitable for applications in environmental monitoring, industrial temperature control, and consumer electronics.

Pinout

The LM135Z is a precision temperature sensor IC housed in a TO-92 package. It has three pins, and their functions are as follows:
1. Pin 1 (V+ or Ground): This is the ground pin for the device.
2. Pin 2 (Output): The output pin provides a voltage that is linearly proportional to the temperature in Kelvin. The typical output voltage is 10 mV per Kelvin. For example, at 298.15 Kelvin (25°C), the output voltage would be approximately 2.9815 volts.
3. Pin 3 (V- or Input): This is the supply voltage pin. The LM135Z operates over a wide range of supply voltages, typically from 4V to 30V, allowing it to be used in various applications.
The LM135Z is often used for precise temperature measurements in applications such as HVAC systems, battery management, and industrial process control due to its accuracy and ease of use.

Manufacturer

The LM135Z is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest producers of semiconductors globally and is particularly well-known for its production of analog chips and embedded processors. The company serves a wide range of industries, including automotive, industrial, personal electronics, and communications equipment.

Application

The LM135Z is a precision temperature sensor commonly used in various applications. It can measure temperatures from -55°C to 150°C with high accuracy. Application areas include environmental monitoring, where it tracks ambient temperatures in HVAC systems; industrial processes, for monitoring machinery temperature; and consumer electronics, ensuring thermal management in devices like computers and appliances. In automotive systems, it helps monitor engine and battery temperatures. Its linear voltage output makes it suitable for integration into analog and digital systems, including microcontroller-based designs. Additionally, its robustness and precision make it ideal for scientific research and medical equipment, where accurate temperature readings are crucial.

Package

The LM135Z is typically available in a TO-92 package, which is a standard three-pin configuration used for small-signal transistors and temperature sensors like the LM135 series. This package is designed for through-hole mounting.

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