ISO7230ADW Digital Isolator - Equivalent & Substitute Parts

Part Overview

The ISO7230ADW is a general purpose digital isolator manufactured by Texas Instruments, featuring 4000Vpk isolation voltage, 3 channels, and 1Mbps data rate in a 16-SOIC surface mount package. This device is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute parts is necessary to ensure continued design support and component availability for new production runs and long-term system maintenance.

Substiute Parts

ISO7230ADW

Texas InstrumentsIn Stock: 747ISO7230ADW Datasheet

Current PartRFQ

ISO7730DWR

Texas InstrumentsIn Stock: 8818ISO7730DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ISO7730DWR qualifies as a direct substitute based on the following alignment criteria:

Mechanical Compatibility: Both parts use identical 16-SOIC (0.295", 7.50mm Width) surface mount packaging, enabling direct PCB footprint compatibility without layout modifications.

Functional Architecture: Both devices maintain 3-channel unidirectional configuration with identical input/output channel distribution (3 inputs, 0 outputs), preserving signal routing and isolation topology.

Isolation Technology: Both employ capacitive coupling isolation technology, ensuring consistent electromagnetic isolation principles and performance characteristics.

Electrical Envelope: The ISO7730DWR operates within the ISO7230ADW supply voltage range (2.25V ~ 5.5V encompasses 3.15V ~ 5.5V) and extended operating temperature range (-55°C ~ 125°C encompasses -40°C ~ 125°C), providing backward compatibility.

Compliance Certification: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity level (MSL 2, 1 Year), ensuring regulatory and environmental consistency.

The ISO7730DWR represents an enhanced specification variant with improved performance metrics while maintaining core substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The ISO7730DWR is qualified as a direct substitute for the ISO7230ADW in applications where the original part's electrical specifications are met or exceeded. The substitute maintains identical mechanical packaging and channel architecture, eliminating PCB redesign requirements.

Product Status Consideration: The ISO7230ADW Last Time Buy status necessitates transition planning. The ISO7730DWR active production status ensures long-term component availability and supply chain continuity.

Compliance Alignment: Both parts maintain equivalent regulatory compliance (ROHS3, REACH unaffected, identical ECCN and HTSUS classifications), supporting seamless integration into existing quality and procurement workflows.

Performance Enhancement: The ISO7730DWR delivers improved electrical performance across all measured parameters—higher isolation voltage, increased data rate capability, superior common mode transient immunity, and reduced propagation delay—without introducing compatibility constraints.

Frequently Asked Questions (FAQ)

Q: Can ISO7730DWR replace ISO7230ADW in existing designs without PCB modification?

A: Yes. Both parts use identical 16-SOIC (0.295", 7.50mm Width) surface mount packaging with matching pinout configuration (3-channel unidirectional input). Direct footprint substitution is possible without layout changes.

Q: What are the key differences between these parts?

A: The ISO7730DWR provides enhanced specifications: 5000Vrms isolation (vs. 4000Vpk), 100Mbps data rate (vs. 1Mbps), 85kV/µs CMTI (vs. 25kV/µs), and faster propagation delay (16ns vs. 95ns). Both maintain identical channel count, package type, and isolation technology.

Q: Is the ISO7730DWR backward compatible with ISO7230ADW applications?

A: Yes. The substitute meets or exceeds all electrical specifications of the original part. Applications designed for ISO7230ADW operation will function with ISO7730DWR without modification, provided supply voltage and temperature ranges are within specification.

Q: Are there any supply voltage considerations for substitution?

A: The ISO7730DWR supports a wider supply voltage range (2.25V ~ 5.5V) compared to ISO7230ADW (3.15V ~ 5.5V). Designs operating at 3.15V or above are fully compatible. Designs requiring operation below 3.15V require the ISO7730DWR's extended lower voltage capability.

Q: Do both parts have identical moisture sensitivity requirements?

A: Yes. Both parts are classified as MSL 2 (1 Year), requiring identical handling, storage, and reflow procedures. No changes to component management protocols are necessary.

Q: What is the packaging difference between these parts?

A: ISO7230ADW is supplied in Tube packaging; ISO7730DWR is supplied in Tape & Reel (TR) format. Both use identical 16-SOIC component packages. Packaging format affects procurement and automated assembly compatibility, not electrical or mechanical performance.