ADUM1400WSRWZ33

Overview

The ADUM1400WSRWZ33 is a unidirectional, general-purpose digital isolator utilizing magnetic coupling technology. It features four independent channels with a data rate of 1 Mbps and a common-mode transient immunity (CMTI) of 25 kV/µs. The device operates on a supply voltage range of 3 V to 5.5 V and provides an isolation voltage of 2500 Vrms. Typical rise and fall times are 2.5 ns, with a maximum propagation delay of 100 ns. It is housed in a 16-SOIC package and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Unidirectional signal transmission across four isolated channels
• Robust common-mode transient immunity for noisy environments
• High-speed digital communication with low propagation delay
• Wide operating temperature range suitable for industrial applications

Applications

• Industrial process control systems
• Medical equipment requiring galvanic isolation
• Power metering and energy management systems
• Automotive electronics interfaces

Procurement Notes

Verify the specific suffix '33' against official Analog Devices documentation to confirm it denotes a valid commercial or automotive grade variant within the ADUM1400 family. Ensure compatibility with existing PCB footprints and design specifications before procurement. Cross-reference datasheet revisions to confirm current manufacturing status and parameter consistency.

Selection Notes

Select this component when unidirectional isolation is required for multiple digital signals. The 4-channel configuration simplifies board layout compared to discrete solutions. Consider the 2500 Vrms isolation rating and 25 kV/µs CMTI for high-noise environments. Verify that the 1 Mbps data rate meets system timing requirements.

Part Context

This part belongs to the ADUM1400 series of iCoupler digital isolators from Analog Devices. These devices integrate proprietary coil and capacitor technology on a CMOS substrate to provide robust isolation without the need for external magnetics. The series offers various channel counts and data rates to suit different interface needs.

Replacement Considerations

Check for direct pin-compatible substitutes such as the ADUM1400WTRWZ or other variants within the ADUM1400 family. Confirm that any replacement maintains the same isolation voltage, data rate, and package dimensions.