REF50E

The REF50E is a precision voltage reference IC manufactured by Texas Instruments, designed for high accuracy and stability in demanding electronic systems. It offers a fixed output voltage of 5.0 V with a typical initial accuracy of ±0.1%, making it ideal for applications requiring reliable and consistent reference voltages. The device operates from a supply voltage range of 4.5 V to 36 V, enabling flexibility across various power domains in industrial, automotive, and consumer electronics. This voltage reference features low temperature coefficient (typically 2 ppm/°C), ensuring minimal drift over a wide operating temperature range from –40°C to +125°C. Its low output noise (20 µV RMS) and high long-term stability make it suitable for precision analog circuits such as data converters, sensor interfaces, and measurement instrumentation. The REF50E also includes built-in current limiting and thermal shutdown protection, enhancing reliability under fault conditions like short circuits or excessive load. The IC is available in a compact TO-92 package, which simplifies integration into space-constrained designs. It consumes only 1.5 mA of quiescent current at full load, contributing to efficient power usage in battery-powered or energy-sensitive systems. Unlike many references that require external components for regulation, the REF50E provides a complete solution in a single chip, reducing board complexity and component count. It is commonly used in applications such as programmable logic controllers (PLCs), medical devices, test and measurement equipment, and industrial control systems where stable voltage references are essential for accurate signal conditioning and conversion. Additionally, its robust performance in noisy environments makes it well-suited for use in harsh industrial settings or automotive electronics exposed to electromagnetic interference (EMI). Texas Instruments ensures the REF50E meets stringent quality standards through rigorous testing and process controls, guaranteeing consistent performance across production batches. This makes it a trusted choice for engineers designing precision systems where reliability and accuracy cannot be compromised.