AD260AND-3

Overview

The AD260AND-3 is a high-speed digital isolator utilizing IsoLogic circuit architecture. It provides five isolated logic lines with unidirectional signal transmission and magnetic coupling isolation. The device features an integrated isolated power transformer capable of delivering up to 1.5 W at 37 V p-p, enabling a 3.5 kVrms isolated DC-DC supply. It operates on a single 5 V supply with a typical current consumption of 4 mA. The component supports a logic signal bandwidth of 20 MHz minimum and offers common-mode transient immunity of 10 kV/µs. It is housed in a 22-pin PDIP package and functions within a temperature range of -25°C to +85°C.

Feature Summary

• Integrates five isolated logic channels with an embedded power transformer for simultaneous signal and power isolation
• Employs IsoLogic magnetic coupling technology to replace multiple discrete opto-isolators
• Provides high common-mode transient immunity for reliable operation in noisy environments
• Supports field and system output enable or three-state control functions

Applications

• PLC and DCS systems
• Analog input and output cards
• IGBT motor drive controls
• General data acquisition applications

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm pinout and configuration compatibility. Confirm RoHS compliance status as indicated in current datasheets. Check for obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when five-channel unidirectional isolation with integrated power transfer is required. Ensure the application voltage does not exceed the 5 V maximum rating. Verify that the 22-pin DIP footprint fits the PCB layout constraints. Consider the thermal performance within the specified operating temperature range during design integration.

Part Context

The AD260 series represents Analog Devices' IsoLogic family of high-speed logic isolators. This specific model integrates signal isolation and power conversion in a single package. It serves as a compact alternative to multi-chip optocoupler solutions, reducing board space and assembly complexity while maintaining high reliability standards for industrial interfaces.

Replacement Considerations

Direct replacements may include other AD260 variants with different I/O configurations, such as AD260AND-0 or AD260AND-2, provided the channel count matches requirements. Cross-family substitutes like ADUM260N require evaluation of pin compatibility and isolation voltage ratings.