LM335AM

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LM335AM

+BOM

SENSOR ANALOG -40C-100C 8SOIC

  • 제조업체텍사스 인스트루먼트(주)

  • 제조업체 부품 #LM335AM

  • 데이터시트 LM335AM DataSheet

  • 재고20348

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사양

속성 가치
Part Status Obsolete
Base Product Number LM335
Sensor Type Analog, Local
Sensing Temperature - Local -40°C ~ 100°C
Output Type Analog Voltage
Resolution 10mV/°K
Accuracy - Highest (Lowest) ±3°C (±5°C)
Test Condition 25°C (-40°C ~ 100°C)
Operating Temperature -40°C ~ 100°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Tube

개요

Description

The LM335AM is a precision temperature sensor from the LM335 series, designed to measure temperature with high accuracy. It operates as a temperature-dependent voltage source, producing an output voltage linearly proportional to the Kelvin temperature scale. For each degree Kelvin, the output voltage changes by approximately 10 mV, making it straightforward to translate voltage readings into temperature measurements.
The sensor typically operates within a temperature range of -40°C to +100°C, making it suitable for various applications, including HVAC systems, electronic devices, and environmental monitoring. The LM335AM is known for its stability and low drift over time, ensuring reliable performance in long-term applications.
The device requires a few external components for calibration and is compatible with standard power supplies, typically operating at 5V. Its TO-92 package allows for easy integration into circuits. Overall, the LM335AM provides a cost-effective solution for accurate temperature measurement, with minimal external components and straightforward integration.

Equivalent

The LM335AM is a precision temperature sensor. Equivalent products include:
1. LM35: Similar functionality but with a different output voltage scaling.
2. LM135/LM235: Different versions of the same sensor series with varying temperature ranges and accuracies.
3. TMP36: An alternative with a different voltage output and range.
4. DS18B20: A digital temperature sensor offering similar applications.
5. AD22100: Another analog temperature sensor with comparable features.
These alternatives may have differing electrical characteristics, so always check compatibility with your specific application.

Features

The LM335AM is a precision temperature sensor with the following key features:
1. Precision Temperature Sensor: It provides a linear voltage output directly proportional to absolute temperature in Kelvin.
2. Wide Temperature Range: The device operates effectively over a wide temperature range, typically from -40°C to +100°C.
3. Calibrated Output: It comes precalibrated, providing a standard output of 10 mV per Kelvin, ensuring accurate temperature measurements.
4. High Accuracy: The LM335AM offers high accuracy with a typical error of ±1°C at room temperature.
5. Easy Calibration: It can be easily calibrated by adjusting the output voltage via an external resistor.
6. Low Cost: The sensor is cost-effective, making it suitable for various applications.
7. Low Self-Heating: It features low self-heating, which minimizes errors due to sensor heat.
8. Standard Package: Available in standard TO-92 and other convenient packages for easy integration.
These features make the LM335AM suitable for applications requiring reliable and accurate temperature measurements.

Pinout

The LM335AM is a precision temperature sensor in a 3-pin package, typically TO-92 or SOIC. The pin configuration is as follows:
1. Pin 1 (V+): This is the positive supply voltage pin. The device operates with a voltage range from 4V to 30V.

2. Pin 2 (Vout): The output voltage pin provides a linear output voltage directly proportional to the absolute temperature in Kelvin. The typical output is 10 mV per Kelvin.
3. Pin 3 (GND): This is the ground pin, which should be connected to the system ground.
The LM335AM is used for precision temperature sensing applications, offering a typical accuracy of ±1°C. It provides an analog voltage output, which can be read by microcontrollers or ADCs to determine the temperature. Its linear output makes it easy to use in various applications, including weather stations, thermostats, and environmental monitoring systems.

Manufacturer

The LM335AM is manufactured by Texas Instruments. Texas Instruments is a multinational technology company based in the United States. It is primarily known for designing and manufacturing semiconductors and integrated circuits, which are used in a wide array of electronic devices and systems. Texas Instruments is one of the largest semiconductor companies in the world and serves industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The LM335AM is a precision temperature sensor used in various applications due to its linear voltage output proportional to temperature in Kelvin. Common application areas include:
1. Environmental Monitoring: Measuring ambient temperature in weather stations and HVAC systems.
2. Industrial Automation: Monitoring temperature in manufacturing processes and equipment.
3. Consumer Electronics: Temperature sensing in thermostats, appliances, and smart home devices.
4. Medical Devices: Used in non-critical temperature monitoring applications.
5. Automotive Systems: Monitoring engine and cabin temperatures.
6. Data Centers: Ensuring optimal temperature in server rooms.
7. Research: Used in laboratories for precise temperature measurements.
These applications leverage the LM335AM's accuracy, low cost, and ease of use.

Package

The LM335AM is typically available in a TO-92 package. This package type is a small, through-hole, plastic-encapsulated package commonly used for temperature sensors like the LM335 series.

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