ISO7230ADWR Digital Isolator Equivalent & Substitute Parts

Part Overview

The ISO7230ADWR is a general purpose digital isolator manufactured by Texas Instruments, featuring capacitive coupling technology with 3 channels of unidirectional isolation. This device provides 4000Vpk isolation voltage with 1Mbps data rate capability and 25kV/µs common mode transient immunity. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring digital isolation functionality.

Substiute Parts

ISO7230ADWR

Texas InstrumentsIn Stock: 5111ISO7230ADWR Datasheet

Current PartRFQ

ISO7730DWR

Texas InstrumentsIn Stock: 8818ISO7730DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISO7230ADWR is based on the following critical parameters that must remain compatible:

• Package Type: Both parts must use 16-SOIC (0.295", 7.50mm Width) surface mount packaging for PCB layout compatibility
• Channel Configuration: 3 unidirectional channels with identical input/output distribution (3/0)
• Technology Platform: Capacitive coupling isolation technology from Texas Instruments
• Isolation Voltage: Minimum 4000Vpk isolation rating required
• Common Mode Transient Immunity: Minimum 25kV/µs CMTI required
• Supply Voltage Compatibility: Operating range must encompass the application supply voltage
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status maintained

The ISO7730DWR qualifies as a direct substitute based on these parameters. It maintains identical package, channel count, channel configuration, and technology platform while providing enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ISO7730DWR is a qualified substitute for the ISO7230ADWR based on the following engineering criteria:

Package and Pinout Compatibility: Both devices use identical 16-SOIC (0.295", 7.50mm Width) surface mount packaging with matching pin configurations, enabling direct PCB layout compatibility without redesign.

Functional Equivalence: The ISO7730DWR maintains the same 3-channel unidirectional isolation architecture and capacitive coupling technology platform, ensuring functional compatibility in existing circuit designs.

Performance Enhancement: The substitute part exceeds all critical electrical specifications of the original part, including isolation voltage (5000Vrms vs. 4000Vpk), common mode transient immunity (85kV/µs vs. 25kV/µs), and data rate (100Mbps vs. 1Mbps). These enhancements provide design margin without introducing incompatibility.

Supply and Temperature Range: The ISO7730DWR provides expanded operating ranges for both supply voltage (2.25V ~ 5.5V vs. 3.15V ~ 5.5V) and temperature (-55°C ~ 125°C vs. -40°C ~ 125°C), supporting broader application requirements.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring continued regulatory alignment.

Production Status: The ISO7730DWR is in active production status, providing long-term supply availability compared to the Last Time Buy status of the ISO7230ADWR.

Frequently Asked Questions (FAQ)

Q: Can the ISO7730DWR be used as a direct replacement for the ISO7230ADWR in existing designs?

A: Yes. The ISO7730DWR is a direct substitute. Both devices share identical package type, channel count, channel configuration, and technology platform. The substitute part exceeds all electrical specifications of the original part, ensuring functional compatibility without circuit modification.

Q: What are the key differences between these two isolators?

A: The primary differences are isolation voltage rating (5000Vrms vs. 4000Vpk), common mode transient immunity (85kV/µs vs. 25kV/µs), data rate capability (100Mbps vs. 1Mbps), and product status (Active vs. Last Time Buy). The ISO7730DWR provides superior electrical performance across all measured parameters.

Q: Are there any timing considerations when substituting these parts?

A: The ISO7730DWR has significantly faster propagation delay (16ns vs. 95ns) and lower pulse width distortion (4.9ns vs. 10ns). Applications with timing-critical requirements should verify that the faster switching characteristics of the substitute part do not introduce signal integrity issues in the specific circuit implementation.

Q: Will the ISO7730DWR work with the same supply voltage as the ISO7230ADWR?

A: Yes. The ISO7730DWR supply voltage range (2.25V ~ 5.5V) encompasses the ISO7230ADWR range (3.15V ~ 5.5V). Any supply voltage used with the original part will operate correctly with the substitute part.

Q: Are both parts available in the same packaging options?

A: Both parts are specified in 16-SOIC (0.295", 7.50mm Width) Tape & Reel packaging. No packaging variation exists between these two devices.

Q: What is the reason for the Last Time Buy status of the ISO7230ADWR?

A: The ISO7230ADWR is in Last Time Buy status, indicating end-of-life production. The ISO7730DWR represents the active production alternative within the Texas Instruments digital isolator product line, providing continued design support and supply availability.