AD260BND-2

Overview

The AD260BND-2 is a high-speed digital isolator from Analog Devices, utilizing IsoLogic circuit architecture to isolate five digital control signals. It features a unidirectional configuration with three input lines and two output lines. The device provides an integrated isolated power transformer capable of delivering up to 1.5 W at 37 V p-p, supporting a 3.5 kV rms isolation voltage. It operates within a temperature range of -25°C to +85°C and is housed in a 22-pin PDIP package.

Feature Summary

• Integrates five isolated logic lines with an embedded power transformer for simultaneous signal and power isolation
• Utilizes IsoLogic architecture to replace multiple discrete opto-isolators while maintaining high speed performance
• Provides robust common-mode transient immunity and waveform edge transmission symmetry for reliable data integrity

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 I/O configuration (3-input/2-output) against system requirements as the AD260 family offers six distinct models. Confirm RoHS compliance status and lead times due to potential discontinuation or limited availability. Ensure the 22-pin PDIP package fits the target PCB layout constraints.

Selection Notes

Select this model when a unidirectional signal path with three inputs and two outputs is required alongside isolated power delivery. Consider the 20 MHz logic bandwidth and 1.5 W power capability relative to load demands. Evaluate thermal management needs given the operating temperature range and power dissipation characteristics.

Part Context

The AD260 series represents a family of high-speed logic isolators designed to consolidate multiple functions into a single package. By integrating an isolated dc-dc power supply transformer, it simplifies design complexity compared to traditional multi-component isolation solutions. This specific variant belongs to the broader AD260 product line offering various I/O configurations.

Replacement Considerations

Direct substitutes include other AD260 variants such as AD260BND-0 or AD260BND-1, provided the pinout and I/O directionality match the application requirements. Verify that alternative components support the same 3.5 kV isolation rating and 1.5 W power transfer capability.