ISO7710FDW Digital Isolator - Equivalent & Substitute Parts

Part Overview

The ISO7710FDW is a general purpose digital isolator manufactured by Texas Instruments, designed for applications requiring galvanic isolation up to 5000Vrms. This single-channel, unidirectional isolator operates at 100Mbps data rate with 85kV/µs common mode transient immunity and is housed in a 16-SOIC surface mount package.

The ISO7710FDW is currently in Active product status with 2914 units in stock. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and packaging requirements. The ISO7710DW is available as a parametric equivalent, though it carries Last Time Buy status, indicating limited future availability.

Substiute Parts

ISO7710FDW

Texas InstrumentsIn Stock: 2985ISO7710FDW Datasheet

Current PartRFQ

ISO7710DW

Texas InstrumentsIn Stock: 3179ISO7710DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISO7710FDW is determined by the following critical parameters:

• Isolation Voltage: 5000Vrms (exact match required)
• Channel Configuration: 1 channel, unidirectional (exact match required)
• Data Rate: 100Mbps (exact match required)
• Common Mode Transient Immunity: 85kV/µs minimum (exact match required)
• Package Type: 16-SOIC (0.295", 7.50mm Width) (exact match required)
• Supply Voltage Range: 2.25V ~ 5.5V (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Technology: Capacitive Coupling (exact match required)

The ISO7710DW meets all electrical and mechanical substitution criteria. Both parts share identical isolation voltage, channel configuration, data rate, CMTI, propagation delay characteristics, and package specifications. The primary distinction is product lifecycle status: ISO7710FDW is Active, while ISO7710DW is Last Time Buy.

Parameter Comparison

Engineering Selection Recommendations

ISO7710FDW (Primary Selection)

The ISO7710FDW is the recommended choice for new designs and ongoing production. This part carries Active product status from Texas Instruments, ensuring long-term availability and continued manufacturing support. It is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Current inventory of 2914 units supports immediate procurement needs.

ISO7710DW (Alternative Selection)

The ISO7710DW is electrically and mechanically identical to the ISO7710FDW and functions as a direct substitute. However, this part is designated Last Time Buy, indicating that Texas Instruments will discontinue production after existing stock is depleted. The ISO7710DW should be selected only when ISO7710FDW availability is constrained or when existing designs already incorporate this part number. Current inventory of 3088 units is available.

Both parts meet identical compliance standards (ROHS3, REACH unaffected) and share the same moisture sensitivity level and packaging specifications. Selection between these parts should be based on product lifecycle requirements and long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can ISO7710DW be used as a direct replacement for ISO7710FDW in existing designs?

A: Yes. The ISO7710DW is a parametric equivalent with identical electrical specifications, timing characteristics, and 16-SOIC package dimensions. No circuit modifications are required for substitution.

Q: What is the difference between ISO7710FDW and ISO7710DW?

A: The parts are electrically and mechanically identical. The primary difference is product lifecycle status: ISO7710FDW is Active, while ISO7710DW is Last Time Buy. This affects long-term availability and supply chain planning.

Q: Are there any compatibility concerns when switching between these parts?

A: No compatibility concerns exist. Both parts use identical capacitive coupling technology, operate at 5000Vrms isolation voltage, support 100Mbps data rate, and are housed in the same 16-SOIC package. Pin configuration and electrical behavior are identical.

Q: What does Last Time Buy status mean for ISO7710DW?

A: Last Time Buy indicates that Texas Instruments will cease production of this part after current inventory is exhausted. Customers requiring this part number should plan procurement accordingly and consider transitioning to the Active ISO7710FDW for future designs.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both ISO7710FDW and ISO7710DW operate across the -55°C to 125°C temperature range and maintain specified electrical characteristics throughout this range.

Q: Do these parts require different PCB layouts or thermal management?

A: No. Both parts use identical 16-SOIC packaging with 0.295" body width and 7.50mm width specification. PCB footprints, thermal characteristics, and mounting requirements are identical.