AD7244JR Equivalent & Substitute Parts

Part Overview

The AD7244JR is a 14-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., featuring dual D/A conversion channels with voltage-buffered output and SPI data interface. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

AD7244JR

Analog Devices Inc.In Stock: 2464AD7244JR Datasheet

Current PartRFQ

AD7244JRZ

Analog Devices Inc.In Stock: 1430AD7244JRZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7244JR is determined by strict equivalence across the following critical parameters:

• Resolution: 14-bit conversion capability
• Channel Configuration: Dual D/A converters
• Output Architecture: Voltage-buffered topology with R-2R architecture
• Interface Protocol: SPI serial data interface
• Reference Configuration: Support for both external and internal reference sources
• Supply Voltage: ±5V analog supply compatibility
• Accuracy Specifications: INL/DNL performance within ±2 LSB and ±1 LSB limits
• Settling Time: 4µs maximum response time
• Package Compatibility: 28-SOIC surface mount form factor
• Temperature Range: -40°C to 85°C operational envelope

The AD7244JRZ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The AD7244JRZ is the qualified substitute for the obsolete AD7244JR. Both components share identical electrical and mechanical specifications, ensuring functional equivalence in system applications. The primary distinction is product lifecycle status: the AD7244JR is obsolete, while the AD7244JRZ maintains active production status.

The AD7244JRZ carries ROHS3 compliance and REACH unaffected status, providing regulatory alignment for new designs and ongoing procurement. Selection of the AD7244JRZ eliminates obsolescence risk while maintaining full compatibility with existing circuit designs and PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the AD7244JRZ directly replace the AD7244JR in existing designs?

A: Yes. The AD7244JRZ is electrically and mechanically identical to the AD7244JR across all specified parameters, including resolution, channel count, settling time, output type, interface protocol, supply voltage, accuracy specifications, and package form factor. No circuit modifications are required.

Q: What is the primary reason to substitute the AD7244JR?

A: The AD7244JR is classified as obsolete. The AD7244JRZ provides continued access to equivalent functionality with active production status and current regulatory compliance certifications.

Q: Are there packaging differences between these parts?

A: Both components use the 28-SOIC surface mount package with identical dimensions (0.295", 7.50mm width). The AD7244JRZ is supplied in tube packaging, while the AD7244JR packaging specification was not provided. This does not affect electrical performance or PCB compatibility.

Q: What compliance certifications apply to the AD7244JRZ?

A: The AD7244JRZ is ROHS3 compliant and REACH unaffected. Both components carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: Are the SPI interface protocols identical between these parts?

A: Yes. Both the AD7244JR and AD7244JRZ implement identical SPI data interface specifications, supporting the same serial communication protocols and timing requirements.

Q: What is the moisture sensitivity level for these components?

A: Both parts carry MSL 3 rating with a 168-hour floor life specification, requiring equivalent handling and storage protocols.