ISO3080DWG4 Equivalent & Substitute Parts

Part Overview

The ISO3080DWG4 is a 2/2 transceiver with isolated full RS422/RS485 capability in a 16-SOIC package, manufactured by Texas Instruments. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The isolation architecture and dual-channel configuration serve applications requiring robust communication in electrically noisy environments with galvanic separation between logic domains.

Substiute Parts

ISO3080DWG4

Texas InstrumentsIn Stock: 904ISO3080DWG4 Datasheet

Current PartRFQ

ISO3080DW

Texas InstrumentsIn Stock: 2713ISO3080DW Datasheet

MFR RecommendedRFQ

ISO3080DWR

Texas InstrumentsIn Stock: 18746ISO3080DWR Datasheet

MFR RecommendedRFQ

MAX14949EWE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3442MAX14949EWE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ISO3080DWG4 is determined by strict alignment of the following critical parameters:

• Protocol compatibility: RS422/RS485 full-duplex operation
• Channel configuration: 2/2 driver/receiver topology
• Package form factor: 16-SOIC (0.295", 7.50mm Width)
• Supply voltage range: 3.15V ~ 5.5V or 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Data rate capability: minimum 200 kbps
• Isolation architecture: galvanic isolation between logic domains
• Surface mount compatibility

The substitute parts ISO3080DW and ISO3080DWR are direct functional equivalents from the same manufacturer base product line (ISO3080), differing only in packaging format and product status. The MAX14949EWE+T represents a cross-manufacturer alternative with enhanced isolation voltage and data rate specifications, maintaining electrical and mechanical compatibility within the defined parameter space.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using ISO3080DWG4, the following selection criteria apply based on product status and compliance:

ISO3080DW is recommended as the primary substitute when packaging in tube format is acceptable. This part maintains identical electrical specifications and is classified as Last Time Buy, indicating limited future availability.

ISO3080DWR is the preferred long-term substitute, offering active product status with the highest current inventory availability. This part is supplied in Cut Tape and Digi-Reel formats, supporting both manual and automated assembly processes. Active status ensures continued manufacturability and supply chain stability.

MAX14949EWE+T serves as a cross-manufacturer alternative for applications requiring enhanced isolation voltage (5000 Vrms) and higher data rate capability (500 kbps). This part features active product status and superior moisture sensitivity rating (MSL 1), reducing handling and storage constraints. The unidirectional channel configuration (2/1) differs from the bidirectional 2/2 topology of the ISO3080 series; circuit-level verification is required to confirm compatibility with specific application requirements.

All substitute parts maintain ROHS3 compliance and EAR99 export classification, supporting regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can ISO3080DW directly replace ISO3080DWG4 in existing designs?

A: Yes. ISO3080DW provides identical electrical specifications, protocol support, and package form factor. The difference is packaging format (tube versus individual packaging). No circuit modifications are required.

Q: What is the difference between ISO3080DW and ISO3080DWR?

A: Both parts are electrically identical. ISO3080DW is supplied in tube packaging and classified as Last Time Buy. ISO3080DWR is supplied in Cut Tape and Digi-Reel formats with active product status, ensuring continued availability and manufacturability.

Q: Is MAX14949EWE+T a direct replacement for ISO3080DWG4?

A: MAX14949EWE+T is mechanically and electrically compatible within the defined parameter space but differs in channel configuration (2/1 unidirectional versus 2/2 bidirectional). Applications using full-duplex bidirectional communication on both channels require circuit-level verification before substitution.

Q: What are the key differences between the substitute parts?

A: ISO3080DW and ISO3080DWR are functionally identical with different packaging and availability status. MAX14949EWE+T offers higher isolation voltage (5000 Vrms), faster data rate (500 kbps), and better moisture sensitivity rating, but uses a different isolation technology (capacitive coupling) and channel topology.

Q: Are all substitute parts RoHS compliant?

A: Yes. ISO3080DW, ISO3080DWR, and MAX14949EWE+T are all ROHS3 compliant, supporting regulatory requirements for restricted substance elimination.

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

A: ISO3080DWR is recommended for new designs due to active product status, ensuring long-term manufacturability and supply availability. For applications requiring enhanced isolation or higher data rates, MAX14949EWE+T is suitable if the unidirectional channel configuration aligns with circuit requirements.

Q: What is the moisture sensitivity level difference between parts?

A: ISO3080DWG4, ISO3080DW, and ISO3080DWR have MSL 2 (1 Year), requiring controlled storage and handling. MAX14949EWE+T has MSL 1 (Unlimited), eliminating time-based moisture sensitivity constraints and reducing storage complexity.