REF5040AIDG4 Equivalent & Substitute Parts

Part Overview

The REF5040AIDG4 is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 4.096V output with ±0.1% tolerance. This component is classified as a Power Management (PMIC) device and is packaged in an 8-SOIC surface mount configuration. The REF5040AIDG4 is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

REF5040AIDG4

Texas InstrumentsIn Stock: 867REF5040AIDG4 Datasheet

Current PartRFQ

REF5040AID

Texas InstrumentsIn Stock: 1720REF5040AID Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the REF5040AIDG4 is determined by strict equivalence across the following critical parameters:

Output Voltage: Both parts must provide a fixed 4.096V output to maintain circuit functionality.

Tolerance: ±0.1% tolerance is required to ensure precision in voltage reference applications.

Output Current: 10 mA capability must be maintained for load compatibility.

Temperature Coefficient: 8 ppm/°C specification ensures thermal stability across the operating range.

Input Voltage Range: 4.296V ~ 18V input compatibility is mandatory for power supply integration.

Package / Case: 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width) is required for PCB layout compatibility.

Operating Temperature: -40°C ~ 125°C range must be supported for the intended application environment.

The REF5040AID meets all these criteria and is classified as an active product, making it a direct functional equivalent suitable for replacing the obsolete REF5040AIDG4.

Parameter Comparison

Engineering Selection Recommendations

The REF5040AID is the direct substitute for the obsolete REF5040AIDG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the REF5040AIDG4 is obsolete, while the REF5040AID is active and currently in production.

Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility. The REF5040AID is available in Tube packaging, compared to the original part's unspecified packaging format, and offers superior inventory availability (1617 Pcs vs. 758 Pcs).

For new designs or component replacement in existing applications, the REF5040AID is the appropriate selection due to its active product status and continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the REF5040AID be used as a direct replacement for the REF5040AIDG4?

A: Yes. The REF5040AID is a direct functional equivalent. All electrical parameters, output voltage, tolerance, temperature coefficient, and package specifications are identical. The primary difference is product status: REF5040AID is active while REF5040AIDG4 is obsolete.

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both parts use the identical 8-SOIC package with 0.154" width and 3.90mm dimensions. PCB footprints and mounting requirements are unchanged.

Q: What is the difference in packaging between these two parts?

A: The REF5040AIDG4 packaging format is unspecified in the technical data. The REF5040AID is supplied in Tube packaging. This difference does not affect electrical performance or PCB integration.

Q: Are both parts RoHS compliant?

A: Yes. Both the REF5040AIDG4 and REF5040AID are ROHS3 compliant and carry identical MSL ratings of 2 (1 Year).

Q: Why is the REF5040AIDG4 listed as obsolete?

A: The REF5040AIDG4 has been discontinued by Texas Instruments. The REF5040AID remains in active production and is the recommended replacement for ongoing procurement and design support.