Texas Instruments

REF3025AIDBZRG4

REF3025AIDBZRG4 Description

The REF3025AIDBZRG4 is a high-precision, low-power 2.5V series voltage reference from Texas Instruments, designed for applications requiring stable and accurate voltage regulation. With a ±0.2% tolerance and a 75ppm/°C temperature coefficient, this IC delivers exceptional accuracy across a wide operating temperature range. It operates from an input voltage range of 2.55V to 5.5V, making it suitable for both low-voltage and standard power supply systems. The device features a 50µA ultra-low supply current and a 25mA output current capability, ensuring minimal power consumption while supporting moderate load conditions. Packaged in a SOT23-3 form factor with Tape & Reel (TR) mounting, it is optimized for surface-mount applications in space-constrained designs.

REF3025AIDBZRG4 Features

• Fixed 2.5V output with ±0.2% initial accuracy for precision voltage referencing.
• Low temperature drift (75ppm/°C) ensures stability across varying environmental conditions.
• Ultra-low supply current (50µA) minimizes power consumption in battery-operated systems.
• Wide input voltage range (2.55V–5.5V) compatible with 3V and 5V supplies.
• Low noise (80µVrms, 10Hz–10kHz) for clean signal conditioning in sensitive analog circuits.
• 25mA output current supports direct driving of moderate loads without buffering.
• RoHS3 compliant and REACH unaffected, meeting environmental regulations.
• SOT23-3 package enables compact PCB layouts in portable and embedded designs.

REF3025AIDBZRG4 Applications

• Precision data converters (ADCs/DACs) requiring stable reference voltages.
• Battery-powered devices (e.g., IoT sensors, wearables) due to low quiescent current.
• Industrial control systems where high accuracy and low drift are critical.
• Portable medical instruments (e.g., glucose meters, patient monitors) demanding reliable voltage references.
• Automotive electronics (non-safety-critical) such as infotainment and sensor interfaces.
• Power management circuits for voltage regulation in low-dropout (LDO) applications.

Conclusion of REF3025AIDBZRG4

The REF3025AIDBZRG4 stands out as a high-performance voltage reference, combining low power, high accuracy, and compact packaging for modern electronic systems. Its low noise, wide operating range, and robust tolerance make it ideal for precision analog designs, particularly in power-sensitive and space-constrained applications. While marked as obsolete, it remains a reliable choice for legacy designs or where specific performance characteristics are prioritized. Engineers seeking a balance of precision and efficiency in voltage referencing will find this IC well-suited for industrial, medical, and portable applications.