onsemi

MC1403P1G  

Voltage References

MC1403P1G Description

The MC1403P1G from onsemi is a precision 2.5V series voltage reference IC designed for applications requiring stable and accurate voltage regulation. Housed in an 8-pin DIP (Through Hole) package, this obsolete but reliable component offers a ±1% tolerance and a low temperature coefficient of 40ppm/°C, ensuring consistent performance across an operating temperature range of 0°C to 70°C. With an input voltage range of 4.5V to 40V and a low supply current of 1.5mA, it is well-suited for power-sensitive designs. The 10mA output current capability makes it versatile for driving moderate loads, while its fixed output voltage simplifies circuit design.

MC1403P1G Features

• Precision Voltage Reference: Delivers a fixed 2.5V output with ±1% accuracy, ideal for high-precision analog systems.
• Wide Input Range (4.5V–40V): Compatible with various power supplies, including industrial and automotive systems.
• Low Temperature Drift (40ppm/°C): Maintains stability across temperature variations, critical for measurement equipment.
• Low Supply Current (1.5mA): Reduces power consumption in battery-operated or energy-efficient designs.
• Through-Hole Packaging (8DIP): Facilitates easy prototyping and integration in legacy systems.
• 10mA Output Current: Supports direct load driving without additional buffering in many applications.

MC1403P1G Applications

The MC1403P1G excels in systems demanding stable voltage references, such as:

• Analog-to-Digital Converters (ADCs): Provides a precise reference for accurate signal conversion.
• Digital Multimeters (DMMs): Ensures measurement consistency over temperature fluctuations.
• Power Supply Regulation: Acts as a stable bias for voltage regulators or feedback circuits.
• Industrial Control Systems: Used in sensor calibration and instrumentation due to its reliability.
• Automotive Electronics: Suitable for low-power, high-voltage environments like battery monitoring.

Conclusion of MC1403P1G

Though marked obsolete, the MC1403P1G remains a robust choice for engineers seeking a high-accuracy, low-drift voltage reference with wide input compatibility. Its low power consumption, 10mA drive capability, and through-hole packaging make it particularly useful in legacy or prototyping applications. While newer alternatives exist, this IC’s proven performance in precision circuits ensures its continued relevance in industrial, automotive, and measurement systems.

MC1403P1G Documents

Download datasheets and manufacturer documentation for MC1403P1G