ADUM140D1BRZ

Overview

The ADUM140D1BRZ is a general-purpose digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It features four isolated channels with a 4:0 input-to-output configuration, providing robust signal transmission across isolation barriers. The device supports data rates up to 150Mbps and offers a common-mode transient immunity of 75kV/µs. It operates on a single supply voltage ranging from 1.7V to 5.5V and is housed in a 16-SOIC package. The component ensures electrical isolation with a rating of 3000Vrms and functions within an extended temperature range of -40°C to 125°C.

Feature Summary

• Utilizes proprietary iCoupler magnetic coupling technology for high-speed digital isolation without external magnetics.
• Provides four independent unidirectional signal paths with integrated logic functionality.
• Delivers high common-mode transient immunity to maintain signal integrity in noisy environments.
• Supports wide operating voltage ranges and extended industrial temperature specifications.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages.
• Medical equipment needing reliable signal isolation for patient safety compliance.
• Power electronics interfaces such as motor drives and inverter gate driving circuits.
• Communication bus isolation for protocols like RS-485 or CAN in harsh electromagnetic environments.

Procurement Notes

Verify the specific suffix D1BRZ against official Analog Devices documentation to confirm pinout and functional orientation. Ensure compatibility with system voltage levels and thermal requirements before integration. Check for recent Product Change Notifications regarding manufacturing site updates or material composition changes. Confirm RoHS3 compliance status if required by regional regulations. Validate packaging type and moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required in a compact surface-mount package. Consider the 150Mbps data rate and 75kV/µs CMTI for high-noise industrial applications. Evaluate the 16-SOIC footprint against available PCB space constraints. Compare propagation delay characteristics against timing requirements of the target interface protocol. Assess the need for integrated logic functions versus simple buffer isolation.

Part Context

The ADUM140 series belongs to Analog Devices' iCoupler family, which replaces traditional transformer-based isolation with on-chip microtransformer technology. This approach reduces size, power consumption, and latency while improving reliability. The ADUM140D1BRZ specifically addresses applications needing quad-channel isolation with standard logic outputs, fitting into broader system designs where multiple isolated signals must be transmitted simultaneously.

Replacement Considerations

ADUM140D0BRZ is a documented alternative within the same family, offering similar isolation characteristics but potentially differing in channel directionality or internal logic configuration. Verify pin-to-pin compatibility and functional equivalence before substitution. Consult the latest datasheet revision history for any parameter shifts that may impact circuit performance.

FAQ

What is the maximum data rate supported by the ADUM140D1BRZ?

The device supports a maximum data rate of 150Mbps per channel.

Does the ADUM140D1BRZ include an isolated power supply?

No, the ADUM140D1BRZ is a signal-only isolator and does not integrate an isolated DC/DC converter; separate isolated power supplies are required for each side.

What is the common-mode transient immunity (CMTI) specification?

The typical common-mode transient immunity is 75kV/µs, ensuring robust performance in high-noise environments.