REF5040AIDGKR

Overview

The REF5040AIDGKR is a precision series voltage reference integrated circuit manufactured by Texas Instruments. It provides a fixed output voltage of 4.096V with an initial accuracy tolerance of ±0.1%. The device operates within an input voltage range of 4.296V to 18V and draws a supply current of 1.2mA. It features a low temperature coefficient of 8ppm/°C and exhibits a peak-to-peak noise of 12µV/V in the 0.1Hz to 10Hz frequency band. The component supports a maximum output current of 10mA and functions reliably across an operating temperature range from -40°C to +125°C. It is housed in an 8-VSSOP surface-mount package.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance
• Maintains stable performance over wide temperature variations with low drift characteristics
• Provides low-noise operation suitable for sensitive analog signal processing applications

Applications

• High-resolution data acquisition systems requiring precise voltage references
• Industrial process control instrumentation demanding long-term stability
• Medical equipment utilizing accurate analog-to-digital conversion stages

Procurement Notes

Verify the specific suffix 'DGKR' indicates tape-and-reel packaging distinct from cut-tape variants. Confirm the 'A' grade designation matches required accuracy specifications. Ensure the manufacturer part number aligns exactly with design requirements before ordering. Cross-reference datasheet revisions to confirm pinout and electrical parameter consistency.

Selection Notes

Select this component when a fixed 4.096V reference with ±0.1% accuracy is required. Consider the 8ppm/°C temperature coefficient for thermal stability needs. Evaluate the 1.2mA supply current against power budget constraints. Verify that the 8-VSSOP package fits the available PCB footprint and assembly capabilities.

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 REF5040 specifically targets applications needing a 4.096V output. The DGKR suffix denotes reel packaging for automated assembly processes.

Replacement Considerations

Check for direct cross-references such as REF5040AIDGKT for different packaging options. Verify compatibility with other 4.096V series references from manufacturers like Analog Devices or Maxim Integrated. Ensure substitute parts match the 8-VSSOP package and electrical specifications.