REF5025IDRG4

Overview

The REF5025IDRG4 is a precision series voltage reference integrated circuit manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy tolerance of ±0.05%. The device operates within an input voltage range of 2.7 V to 18 V and delivers a maximum output current of 10 mA while consuming a supply current of approximately 1.2 mA. It features a low temperature coefficient of 3 ppm/°C and exhibits low noise characteristics, specified at 7.5 µVpp from 0.1 Hz to 10 Hz. The component is housed in an 8-SOIC surface-mount package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides high-precision fixed voltage output with tight initial accuracy tolerance for sensitive measurement applications.
• Features ultra-low temperature coefficient to maintain stability across wide thermal variations.
• Delivers low noise performance suitable for high-resolution data acquisition systems.
• Operates efficiently with low supply current consumption within a wide input voltage range.

Applications

• High-resolution analog-to-digital converter (ADC) references
• Precision sensor signal conditioning circuits
• Medical instrumentation requiring stable voltage sources
• Industrial process control measurement systems

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the SOIC-8 package dimensions and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact accuracy grade and package variant required for your design specifications before procurement.

Selection Notes

Select this component when a fixed 2.5 V reference with ±0.05% accuracy is required. Consider the 3 ppm/°C drift specification for thermal stability needs. Evaluate the 10 mA output current capability against load requirements. Compare noise performance metrics if low-frequency flicker noise is critical for the application.

Part Context

This part belongs to the REF50xx family of precision voltage references from Texas Instruments. The family offers various output voltages and accuracy grades. The IDRG4 designation specifically denotes the 2.5 V version with ±0.05% accuracy in an 8-SOIC tape-and-reel package. It is designed for general-purpose high-precision applications requiring reliable long-term stability.

Replacement Considerations

Direct pin-compatible alternatives within the same family include REF5025IDR. Other manufacturers may offer similar specifications but require verification of pinout compatibility and electrical parameter alignment. Always consult official substitution guides for validated replacements.