ISO721DUB Texas Instruments Integrated Circuit (Other) In Stock
The ISO721DUB is a single-channel digital isolator from Texas Instruments, housed in an 8-pin SOIC package with plastic/epoxy construction. It provides high-voltage galvanic isolation for digital signals and operates with both 3.3 V and 5 V supply voltages, with a 260°C peak reflow temperature rating. Available with worldwide shipping from authorized distributors.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- ISO721DUB Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel digital isolator providing galvanic isolation to protect logic circuits from high-voltage transients and ground potential differences
- Dual supply compatibility operating with both 3.3 V and 5 V logic levels, enabling seamless integration across mixed-voltage digital systems
- 8-pin SOIC package (JESD-30 R-PDSO-G8) rated to 260°C peak reflow temperature, compatible with standard lead-free solder reflow assembly processes
Applications
The ISO721DUB is used in industrial automation, motor drives, and power electronics where digital signals must cross isolation barriers to protect sensitive microcontrollers from high-voltage domains. It is also deployed in medical equipment, fieldbus interfaces (such as RS-485 and CAN), and smart meter designs where galvanic isolation is required for safety and noise immunity. Its compatibility with both 3.3 V and 5 V supplies makes it a flexible drop-in isolator for mixed-voltage system architectures.
Specifications
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES WITH 5 V SUPPLY |
| Interface IC Type | DIGITAL ISOLATOR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 4 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ISO721DUB:
Frequently Asked Questions
What is the ISO721DUB and what does it do?
The ISO721DUB is a single-channel digital isolator from Texas Instruments that provides galvanic isolation for digital signals. It transmits logic-level signals across an isolation barrier, protecting low-voltage microcontrollers and logic from high-voltage or noisy power domains while maintaining signal integrity.
What supply voltages does the ISO721DUB support?
The ISO721DUB supports both 3.3 V and 5 V supply voltages on its input and output sides. This dual-voltage compatibility allows it to interface directly between 3.3 V microcontrollers and 5 V legacy peripherals or between different logic-level domains without additional level-shifting components.
What package does the ISO721DUB use and what is its reflow rating?
The ISO721DUB is housed in an 8-pin SOIC package (JESD-30 code R-PDSO-G8) made of plastic/epoxy material. It is rated to a peak reflow temperature of 260°C, making it fully compatible with standard lead-free solder reflow assembly processes used in modern electronics manufacturing.
In which applications is the ISO721DUB commonly used?
The ISO721DUB is commonly used in industrial motor drives, power converters, medical equipment, fieldbus communication interfaces (such as RS-485 and CAN), and smart meters. Any design that requires isolating a low-voltage control circuit from a high-voltage or noisy power section benefits from the galvanic isolation the ISO721DUB provides.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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