AD5446YRM Equivalent & Substitute Parts

Part Overview

The AD5446YRM is a 14-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring single-channel conversion with current output. The device features an R-2R architecture, external reference capability, and dual supply voltage support (2.5V to 5.5V for both analog and digital rails). The AD5446YRM is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

AD5446YRM

Analog Devices Inc.In Stock: 4224AD5446YRM Datasheet

Current PartRFQ

AD5446YRMZ

Analog Devices Inc.In Stock: 1510AD5446YRMZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD5446YRM is determined by strict equivalence across the following critical parameters:

• Resolution: 14-bit conversion capability
• Channel Count: Single D/A converter
• Output Configuration: Current output, unbuffered, differential
• Interface Protocol: SPI and DSP compatibility
• Reference Architecture: External reference requirement
• Supply Voltage Range: 2.5V to 5.5V dual supply
• Linearity Specifications: INL/DNL matching (±2 LSB max, -1/+2 LSB max)
• Settling Performance: 110ns settling time
• Package Compatibility: 10-MSOP surface mount form factor
• Thermal Range: -40°C to 125°C operation

The AD5446YRMZ qualifies as a direct substitute based on identical electrical specifications, package footprint, and pinout compatibility. The primary distinction is product status: AD5446YRMZ is active and available, whereas AD5446YRM is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The AD5446YRMZ is the direct active equivalent for the obsolete AD5446YRM. Both devices share identical electrical performance, pinout, and package specifications. Selection of AD5446YRMZ is appropriate for:

• Replacement in existing designs currently using AD5446YRM
• New production requiring 14-bit DAC functionality with the specified electrical characteristics
• Applications requiring ROHS3 compliance and REACH compliance status

The AD5446YRMZ maintains full backward compatibility with AD5446YRM designs and requires no circuit modifications or firmware changes.

Frequently Asked Questions (FAQ)

Q: Can AD5446YRMZ be used as a direct replacement for AD5446YRM?

A: Yes. Both parts are electrically and mechanically identical. The AD5446YRMZ is the active production equivalent of the obsolete AD5446YRM. No design changes are required.

Q: What is the primary difference between AD5446YRM and AD5446YRMZ?

A: Product status and compliance certifications. AD5446YRM is obsolete; AD5446YRMZ is active. AD5446YRMZ carries ROHS3 and REACH compliance documentation.

Q: Are the package footprints identical?

A: Yes. Both use the 10-MSOP surface mount package with 0.118" width (3.00mm). PCB layouts and component placement require no modification.

Q: What are the critical electrical parameters that define substitution eligibility?

A: 14-bit resolution, single-channel configuration, 110ns settling time, current output with differential capability, SPI/DSP interface, external reference requirement, and 2.5V to 5.5V dual supply voltage range.

Q: Is the AD5446YRMZ suitable for new designs?

A: Yes. As an active product with current manufacturing support and compliance certifications, AD5446YRMZ is the appropriate choice for new designs requiring this DAC functionality.