TEXAS INSTRUMENTS Precision Voltage Reference IC, Fixed, SOT-23-3 - 1.25V

The TEXAS INSTRUMENTS REF3040 series is a precision voltage reference IC designed for critical applications demanding high stability and low power consumption. Engineered as a series-fixed reference, it provides a stable voltage signal against variations in supply voltage, temperature, and load. This device is characterised by its low quiescent current, making it exceptionally suitable for power-sensitive designs and extending battery life in portable electronics.

Housed in a compact, surface-mount SOT-23 package, it integrates a complete voltage reference solution into a minimal footprint, ideal for space-constrained printed circuit boards. The IC does not require an external load capacitor for stability, simplifying design and reducing overall component count, but remains fully stable with any capacitive load. A key feature is its low dropout voltage, enabling operation with supply voltages very close to its output, which is advantageous in low-voltage systems.

Key Features & Benefits

• High Precision & Stability: Offers excellent initial accuracy and a low temperature coefficient, ensuring reliable performance across a wide operating temperature range.
• Low Power Operation: Consumes minimal quiescent current, which is critical for battery-powered and always-on applications.
• Robust Output Drive: Capable of sourcing sufficient current to drive downstream analogue-to-digital converters and other circuitry.
• Environmental Compliance: Manufactured as a green product, free from antimony and bromine, aligning with modern environmental standards.
• Design Flexibility: Its small size and surface-mount package facilitate integration into high-density PCB layouts.

This precision voltage reference is a fundamental building block for ensuring measurement integrity and signal consistency in a vast array of electronic systems.

Variant Details

• Size: 1.25V