The LM336 is a precision voltage reference integrated circuit (IC) designed to provide a stable and accurate reference voltage for various electronic circuits. It operates as a shunt regulator diode, offering several advantages over traditional Zener diodes. Here's a breakdown of its key characteristics:
Type: Precision Voltage Reference
Function: Provides a precise and stable voltage output that other circuits can use as a reference point.
Key Features:
Voltage Output: Typically available in two fixed options: 2.5V (LM336-2.5) and 5.0V (LM336-5.0). Check the datasheet for specific tolerance.
Temperature Stability: Excellent stability over a wide temperature range (minimal voltage shift with temperature changes). This is a significant advantage over Zener diodes, which can exhibit larger temperature coefficient variations.
Low Noise: Low output voltage noise for clean and reliable reference.
Adjustable Output (Optional): While fixed voltage options are common, the LM336 allows adjustability of the reference voltage with an external resistor (useful for specific applications).
Wide Operating Current Range: Functions well over a range of current demands from the circuit (typically 2mA to 15mA).
Simple to Use: Requires minimal external components for basic operation.
Benefits:
Improved Circuit Performance: Provides a consistent and reliable voltage reference, leading to improved performance and stability in various circuits.
Reduces Design Complexity: Eliminates the need for bulky discrete components to create a voltage reference, simplifying circuit design.
Temperature Stability: Compared to Zener diodes, the LM336 offers superior temperature stability for more consistent performance.
Adjustable Output (Optional): Provides flexibility in setting the reference voltage for specific needs (in some versions).