AD558KN Equivalent & Substitute Parts

Part Overview

The AD558KN is an 8-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., part of the DACPORT® series. This component provides voltage-buffered output with an internal reference and operates across a wide supply voltage range of 4.5V to 16.5V for both analog and digital supplies. The AD558KN is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

AD558KN

Analog Devices Inc.In Stock: 1527AD558KN Datasheet

Current PartRFQ

AD558KNZ

Analog Devices Inc.In Stock: 3617AD558KNZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD558KN is determined by strict equivalence across the following critical parameters:

• 8-bit resolution with single D/A converter configuration
• Voltage-buffered output topology with internal reference
• Parallel data interface architecture
• R-2R converter architecture
• 3µs settling time specification
• Dual supply voltage range: 4.5V to 16.5V (analog and digital)
• INL/DNL linearity of ±0.25 LSB maximum
• 16-DIP through-hole package format
• Operating temperature range of 0°C to 70°C

The AD558KNZ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The AD558KNZ is the direct equivalent for the obsolete AD558KN. Both components share identical electrical specifications, performance characteristics, and physical packaging. The AD558KNZ offers the advantage of active product status, ensuring continued availability and manufacturer support. Additionally, the AD558KNZ carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for new designs and procurement cycles.

For applications currently using the AD558KN, transition to the AD558KNZ requires no circuit modifications or design changes, as all functional and electrical parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can the AD558KNZ directly replace the AD558KN without circuit modifications?

A: Yes. The AD558KNZ is electrically and mechanically identical to the AD558KN. No design changes are required for substitution.

Q: What is the primary reason to substitute the AD558KN?

A: The AD558KN is classified as obsolete. The AD558KNZ is an active product with guaranteed availability and manufacturer support.

Q: Are there differences in compliance certifications between these parts?

A: The AD558KNZ includes ROHS3 compliance and REACH unaffected status. The AD558KN does not specify these certifications.

Q: Do both parts use the same 16-DIP package?

A: Yes. Both the AD558KN and AD558KNZ use the 16-DIP (0.300", 7.62mm) through-hole package format.

Q: What is the difference between the packaging formats listed?

A: The AD558KN packaging is not specified. The AD558KNZ is supplied in Tube packaging format.

Q: Are the supply voltage requirements identical?

A: Yes. Both parts require 4.5V to 16.5V for analog supply and 4.5V to 16.5V for digital supply.

Q: Is the settling time specification the same for both parts?

A: Yes. Both the AD558KN and AD558KNZ have a settling time of 3µs.