DG409AK Equivalent & Substitute Parts

Part Overview

The DG409AK is a 2-circuit SP4T (single-pole 4-throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 4:1 multiplexer/demultiplexer with 100Ohm on-state resistance per channel, designed for signal routing and switching applications in analog systems. The DG409AK is classified as obsolete, making identification of active equivalent parts essential for ongoing design support, production continuity, and long-term component sourcing strategies.

Substiute Parts

DG409AK

Analog Devices Inc./Maxim IntegratedIn Stock: 809DG409AK Datasheet

Current PartRFQ

5962-9204202MEA

Analog Devices Inc./Maxim IntegratedIn Stock: 10185962-9204202MEA Datasheet

Parametric EquivalentRFQ

DG409AK/883B

Analog Devices Inc./Maxim IntegratedIn Stock: 1916DG409AK/883B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DG409AK is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Parameters (Must Match):

• Switch circuit configuration: SP4T
• Multiplexer/demultiplexer circuit: 4:1
• Number of circuits: 2
• On-state resistance: 100Ohm maximum
• Channel-to-Channel matching: 1.5Ohm
• Supply voltage ranges: 5V ~ 30V (single) and ±5V ~ 20V (dual)
• Switch timing: 150ns maximum for both Ton and Toff
• Charge injection: 2pC
• Channel capacitance: 3pF (CS(off)), 14pF (CD(off))
• Leakage current: 500pA maximum
• Crosstalk: -92dB @ 100kHz
• Operating temperature: -55°C ~ 125°C

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Package: 16-CDIP (0.300", 7.62mm)

All identified substitute parts maintain complete electrical and mechanical compatibility with the DG409AK across these parameters.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

The 5962-9204202MEA is the preferred substitute for the obsolete DG409AK. This part maintains complete electrical and mechanical equivalence while offering active product status and ROHS3 compliance certification. The 5962-9204202MEA is suitable for applications requiring environmental compliance and long-term component availability.

For Legacy System Support and Maintenance:

The DG409AK/883B provides an alternative active substitute with identical electrical and mechanical specifications. This part is suitable for applications where RoHS compliance is not a requirement. The DG409AK/883B maintains the same functional characteristics as the original DG409AK while offering active product status for ongoing sourcing.

Selection Basis:

Both substitute parts are qualified as parametric equivalents based on:

• Complete electrical parameter matching across all switching, timing, and signal integrity specifications
• Identical mechanical packaging and mounting configuration
• Manufacturer continuity (Analog Devices Inc./Maxim Integrated)
• Active product status enabling reliable long-term procurement

The choice between 5962-9204202MEA and DG409AK/883B depends on specific compliance requirements and environmental specifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can the DG409AK be directly replaced with 5962-9204202MEA or DG409AK/883B without circuit modification?

A: Yes. Both substitute parts are parametric equivalents with identical electrical specifications (on-state resistance, switching time, supply voltage ranges, crosstalk, and leakage current) and mechanical packaging (16-CDIP through-hole configuration). Direct pin-for-pin substitution is supported.

Q: What is the difference between the two substitute parts?

A: The primary differences are product status and compliance certifications. The 5962-9204202MEA is ROHS3 compliant and recommended for new designs and applications requiring environmental compliance. The DG409AK/883B is RoHS non-compliant but offers an alternative active source. Both parts are electrically and mechanically identical to the DG409AK.

Q: Why is the DG409AK classified as obsolete?

A: The DG409AK has reached end-of-life status with the manufacturer. Active substitute parts (5962-9204202MEA and DG409AK/883B) are available to support ongoing production and maintenance requirements.

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the 16-CDIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical dimensions.

Q: Which substitute should be selected for new product designs?

A: The 5962-9204202MEA is the recommended choice for new designs due to active product status and ROHS3 compliance certification, ensuring long-term availability and environmental regulatory compliance.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: SP4T switch circuit configuration, 4:1 multiplexer/demultiplexer function, 2-circuit count, 100Ohm on-state resistance, 1.5Ohm channel matching, 5V~30V single supply and ±5V~20V dual supply operation, 150ns switching time, 2pC charge injection, 3pF/14pF channel capacitance, 500pA leakage current, and -92dB crosstalk at 100kHz.

Q: Is the operating temperature range identical across all three parts?

A: Yes. All three parts operate across the -55°C to 125°C temperature range, supporting equivalent thermal performance in industrial and extended-temperature applications.