LM35CAH/NOPB

The LM35CAH/NOPB is a precision temperature sensor manufactured by Texas Instruments. It is designed to provide an accurate and linear output voltage that is directly proportional to the temperature in degrees Celsius. Here’s a detailed description of its features and specifications:

General Overview:

• Type: Analog temperature sensor
• Output: Voltage output proportional to temperature
• Temperature Range: Typically from -40°C to +125°C
• Accuracy: ±0.5°C at room temperature (25°C), with a typical linearity that ensures reliable readings across the specified range.

Electrical Characteristics:

• Supply Voltage: The LM35 operates on a supply voltage range of 4V to 30V, making it versatile for various applications.
• Output Voltage: The output voltage increases linearly with temperature, providing 10 mV per degree Celsius. For example, at 0°C, the output is 0V, and at 25°C, the output is 250 mV.
• Current Consumption: The device has a low current consumption, typically around 60 µA, which is beneficial for battery-powered applications.

Package and Pin Configuration:

• Package Type: The LM35CAH/NOPB is available in a TO-220 package, which is a metal can package that provides good thermal performance and is suitable for heat dissipation.
• Pin Configuration: The device typically has three pins:
  1. Pin 1 (Output): This pin provides the voltage output that corresponds to the temperature.
  2. Pin 2 (V+ or Supply Voltage): This pin connects to the positive supply voltage.
  3. Pin 3 (Ground): This pin connects to the ground of the circuit.

Features:

• Calibrated Directly in Celsius: The LM35 is calibrated in Celsius, eliminating the need for external calibration.
• Low Self-Heating: The sensor has a low self-heating effect, which ensures that the temperature reading is not significantly affected by the sensor's own heat generation.
• Robustness: The device is designed to withstand a variety of environmental conditions, making it suitable for industrial applications.

Applications:

• Temperature Monitoring: Ideal for HVAC systems, environmental monitoring, and industrial temperature control.
• Consumer Electronics: Used in appliances and devices that require temperature sensing.
• Medical Devices: Suitable for applications in medical equipment where precise temperature measurements are critical.

Additional Information:

• RoHS Compliant: The LM35CAH/NOPB is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring it is environmentally friendly.
• No Lead (NOPB): The designation "NOPB" indicates that the product is free from lead, making it safer for both the environment and users.

In summary, the LM35CAH/NOPB from Texas Instruments is a highly accurate, reliable, and easy-to-use temperature sensor that is well-suited for a wide range of applications requiring precise temperature measurement. Its linear output, low power consumption, and robust design make it a popular choice among engineers and designers.