TL1431QD Precision Programmable Reference

The TL1431QD from Texas Instruments is a precision programmable reference that offers excellent accuracy and stability. This voltage reference is designed to be a versatile component in a wide array of applications, including power supplies, battery-operated equipment, and precision data systems. With its adjustable output voltage and low dynamic impedance, the TL1431QD is engineered to deliver high-performance results where reliable voltage references are critical.

Key Features

• Adjustable Output: The TL1431QD provides an output voltage range from 2.495 V to 36 V, which can be set with two external resistors.
• High Accuracy: This device offers a typical output voltage tolerance of ±0.5%, ensuring precise voltage regulation for sensitive applications.
• Low Temperature Coefficient: With a typical temperature coefficient of 6 ppm/°C, the device maintains a stable output over a wide temperature range.
• Low Dynamic Impedance: Its dynamic output impedance of 0.2 ohms contributes to stable voltage supply even with varying load conditions.
• Wide Operating Current Range: The TL1431QD operates with a current range of 1 mA to 100 mA, providing flexibility in various circuit designs.
• Extended Temperature Range: This component is functional over an industrial temperature range of -40°C to 85°C, suitable for harsh environments.

Applications

The TL1431QD is a robust solution for numerous applications, including:

• Adjustable power supplies
• Portable/battery-powered devices
• Digital voltmeters
• Precision current limiters
• Op-amp circuitry
• Reference for digital-to-analog converters (DACs)
• Reference for analog-to-digital converters (ADCs)

Package and Availability

The TL1431QD comes in an 8-pin SOIC package, which is suitable for surface mount technology (SMT). It is widely available and can be ordered through Texas Instruments' official distributors or directly from their website.

With its combination of features, the TL1431QD is an excellent choice for designers looking for a reliable and adjustable voltage reference source.