DDC112UG4 Equivalent & Substitute Parts

Part Overview

The DDC112UG4 is a 20-bit Sigma-Delta analog-to-digital converter manufactured by Texas Instruments, designed for dual-channel data acquisition applications. This device features simultaneous sampling capability, external reference configuration, and operates across industrial temperature ranges (-40°C to 85°C). The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

DDC112UG4

Texas InstrumentsIn Stock: 755DDC112UG4 Datasheet

Current PartRFQ

DDC112U

Texas InstrumentsIn Stock: 9504DDC112U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DDC112UG4 is determined by strict equivalence across the following critical parameters:

• Resolution: 20-bit conversion capability
• Sampling Rate: 3 kHz per second
• Channel Configuration: 2 single-ended inputs
• Serial Interface: SPI protocol
• Converter Architecture: Sigma-Delta topology
• Reference Configuration: External reference input
• Supply Voltages: 5V analog and 5V digital
• Package Type: 28-SOIC form factor
• Temperature Range: -40°C to 85°C operation

The DDC112U qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The DDC112U is the direct functional equivalent for DDC112UG4 applications. Both devices share identical electrical specifications, pin configurations, and mechanical form factors. The DDC112U maintains active product status with established supply channels, whereas the DDC112UG4 is discontinued. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system support.

Selection of DDC112U over DDC112UG4 is justified by product availability and ongoing manufacturer support. No functional performance differences exist between the two variants.

Frequently Asked Questions (FAQ)

Q: Can DDC112U directly replace DDC112UG4 in existing designs?

A: Yes. The DDC112U is electrically and mechanically identical to DDC112UG4. Pin assignments, signal timing, and electrical characteristics are equivalent. Direct substitution requires no circuit modifications.

Q: What is the difference between DDC112UG4 and DDC112U?

A: The primary differences are product status and packaging format. DDC112UG4 is discontinued; DDC112U is active. DDC112U is supplied in tube packaging, while DDC112UG4 uses standard packaging. Electrical performance and functionality are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical EAR99 export classification. Regulatory requirements are satisfied by either variant.

Q: What is the 28-SOIC package specification?

A: The 28-SOIC (Small Outline Integrated Circuit) package measures 0.295 inches (7.50mm) in width. This surface-mount package is standard for both DDC112UG4 and DDC112U devices.

Q: Can I use DDC112U in new production designs?

A: Yes. DDC112U is the recommended choice for new designs due to active product status and established supply availability. It provides identical functionality to the discontinued DDC112UG4.