The Texas Instruments ISO7741FDWR is a high-performance, four-channel reinforced digital isolator designed for reliable signal isolation in industrial and electronic systems. Featuring three forward channels and one reverse channel, this device supports data rates up to 100Mbps and provides a 5000Vrms isolation rating in a wide-body SOIC-16 package.
Built with advanced silicon dioxide (SiO2) capacitive isolation technology, the ISO7741FDWR delivers excellent electromagnetic compatibility (EMC), high noise immunity, and low power consumption. It supports a wide supply voltage range of 2.25V to 5.5V on each side, enabling flexible logic-level translation between isolated circuits.
The device features a typical propagation delay of 10.7ns, typical common-mode transient immunity (CMTI) of ±100kV/µs, and default-low output behavior when input power or signal is lost. Its operating temperature range of -55°C to +125°C makes it suitable for industrial automation, motor control, isolated communication interfaces, and precision electronic systems.
Key Specifications:
- Manufacturer: Texas Instruments (TI)
- Part Number: ISO7741FDWR
- Product Type: Reinforced Digital Isolator
- Number of Channels: 4
- Channel Configuration: 3 Forward / 1 Reverse
- Maximum Data Rate: 100Mbps
- Isolation Voltage: 5000Vrms (UL 1577)
- Supply Voltage: 2.25V to 5.5V
- Default Output State: Low
- Propagation Delay: 10.7ns (Typical)
- Common-Mode Transient Immunity: ±100kV/µs (Typical)
- Package: SOIC-16 Wide Body (DW)
- Operating Temperature: -55°C to +125°C
- Mounting Type: Surface Mount (SMD/SMT)
- Packaging: Tape & Reel
Typical Applications:
- Industrial automation and control systems
- Programmable logic controllers (PLCs)
- Motor drives and control circuits
- Isolated SPI and UART communication
- Industrial communication interfaces
- Power electronics and control systems
- High-voltage signal isolation
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