AD260AND-5

Overview

The AD260AND-5 is a high-speed digital isolator utilizing IsoLogic circuit architecture to isolate five digital control signals between a microcontroller and field I/O components. It features magnetic coupling with an integrated isolated power transformer capable of delivering up to 1.5 W at 37 V p-p, enabling a 3.5 kV rms isolated DC-DC supply. The device operates on a single 5 V supply with a maximum current draw of 4 mA. It supports a logic signal bandwidth of 20 MHz (minimum) and 40 Mbps NRZ data rates. The component is housed in a 22-PDIP through-hole package and is rated for operation from -25°C to +85°C.

Feature Summary

• Integrates five isolated logic lines with an embedded power transformer for simultaneous signal isolation and isolated power generation.
• Employs IsoLogic architecture to provide high common-mode transient immunity and waveform edge transmission symmetry.
• Replaces multiple discrete opto-isolators by consolidating five channels into a single module.
• Supports general-purpose bidirectional or unidirectional logic interfacing without requiring external shutdown functions.

Applications

• PLC and DCS analog input/output cards
• IGBT motor drive controls
• High-speed digital I/O ports
• Communications bus isolation

Procurement Notes

Verify the specific suffix configuration against the datasheet to ensure correct input/output pin assignments, as the AD260 family offers six distinct I/O combinations. Confirm RoHS compliance status, as some variants may be non-compliant. Check for obsolescence notices, as this component may have limited availability or be discontinued. Ensure the 22-PDIP footprint matches the target PCB layout requirements.

Selection Notes

Select the AD260AND-5 when five isolated channels are required alongside integrated isolated power delivery. This model is suitable for designs needing to replace multiple optocouplers while maintaining high-speed data integrity. Consider the 22-PDIP package size if through-hole mounting is mandatory. Evaluate the 20 MHz bandwidth requirement against the application's data rate needs before choosing this over lower-speed alternatives.

Part Context

The AD260 series represents Analog Devices' early implementation of IsoLogic technology, combining magnetic isolation with on-chip power conversion. Unlike standard isolators that require external transformers, this family integrates the power transfer mechanism directly. The AND-5 variant specifically configures the internal logic gates for a defined five-channel arrangement, distinguishing it from other models like the AD260AND-0 which may offer different I/O distributions.

Replacement Considerations

Direct replacements within the AD260 family include AD260AND-0, AD260AND-1, AD260AND-2, AD260AND-3, and AD260AND-4, provided the specific I/O configuration matches the design requirements. Verify pin compatibility across these variants as they share the same package but differ in internal channel mapping.

FAQ

Does the AD260AND-5 include an isolated power supply?

Yes, it includes an integrated isolated power transformer capable of delivering up to 1.5 W at 37 V p-p, eliminating the need for an external isolated DC-DC converter.

What is the common-mode transient immunity of the AD260AND-5?

The device provides a minimum common-mode transient immunity (CMTI) of 10 kV/ms.

How many logic channels does the AD260AND-5 support?

It supports five isolated logic lines, configurable for various input/output combinations depending on the specific suffix variant.