Texas Instruments

REF3025AIDBZTG4

REF3025AIDBZTG4 Description

The REF3025AIDBZTG4 is a high-precision, low-power 2.5V fixed-output voltage reference from Texas Instruments, designed for applications requiring stable and accurate voltage regulation. This surface-mount device features an ultra-low 50µA supply current and a tight ±0.2% initial accuracy, making it ideal for battery-powered and portable electronics. With a 75ppm/°C temperature coefficient and 80µVrms noise performance (10Hz to 10kHz), it ensures reliable operation across a wide 2.55V to 5.5V input range. Packaged in a compact SOT23-3 form factor, it is RoHS3 compliant and REACH unaffected, though it is marked as obsolete in TI's product lineup.

REF3025AIDBZTG4 Features

• Fixed 2.5V output with ±0.2% tolerance for precision applications.
• Ultra-low 50µA supply current, optimizing power efficiency.
• Low noise (80µVrms) and 75ppm/°C tempco for stable performance.
• Wide input range (2.55V–5.5V), compatible with 3V/5V systems.
• 25mA output current capability, suitable for driving ADCs/DACs.
• Surface-mount SOT23-3 package, ideal for space-constrained designs.
• RoHS3 compliant and MSL1 (unlimited shelf life) for easy integration.

REF3025AIDBZTG4 Applications

This voltage reference excels in:

• Portable instrumentation (e.g., data loggers, sensors) due to low power draw.
• Precision analog circuits, such as ADC/DAC reference buffers.
• Battery-powered systems (IoT, wearables) where voltage stability is critical.
• Industrial control systems requiring high accuracy over temperature variations.
• Consumer electronics (e.g., smart meters, medical devices) demanding minimal noise.

Conclusion of REF3025AIDBZTG4

The REF3025AIDBZTG4 offers a compelling blend of accuracy, low power, and compact design, making it a strong choice for precision voltage referencing. While obsolete, its low noise, wide input range, and robust performance ensure relevance in legacy or niche applications. Engineers should evaluate alternatives for new designs but may leverage this IC for its proven reliability in existing systems.