MAX22291CASA/V+T

Digital Isolators Overview

The MAX22291CASA/V+T is a dual-channel digital isolator from Analog Devices/Maxim Integrated, designed for high-speed signal transmission between isolated circuits. It features reinforced isolation with a withstand voltage rating of 3kVRMS for 60 seconds and supports data rates up to 200Mbps. The device operates on a supply voltage range of 1.71V to 5.5V, consuming as little as 0.78mW per channel at 1Mbps. It offers typical common-mode transient immunity (CMTI) of 50kV/µs and propagation delay of 12.3ns. Packaged in an 8-SOIC format, it facilitates communication across different power domains while maintaining signal integrity.

Digital Isolators Feature Summary

• Reinforced isolation architecture ensuring robust signal transfer between disparate power domains
• High-speed digital signal capability supporting data rates up to 200Mbps
• Low-power operation minimizing energy consumption during active transmission
• High common-mode transient immunity for reliable performance in noisy environments

Digital Isolators Applications

• CAN bus interface isolation
• RS232 communication link isolation
• RS485 network isolation
• SPI bus isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'V+' designation aligns with RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure authenticity. Check current availability status as supply constraints may affect lead times. Ensure the 8-SOIC package dimensions match your PCB footprint design.

Digital Isolators Selection Notes

Select this component when dual-channel isolation is required for high-speed serial protocols like CAN or RS485. Consider the 3kVRMS isolation rating for safety-critical applications. Evaluate the low power consumption benefits for battery-operated systems. Verify that the 200Mbps speed meets your system's timing requirements. Ensure the operating temperature range suits your environmental conditions.

Digital Isolators Part Context

This device belongs to the MAX2229x family of digital isolators, which utilize capacitive isolation technology. It complements other single-channel variants like the MAX22191AUT+T by providing two independent isolation channels in a compact package. The series is designed to replace traditional optocouplers in industrial and automotive applications requiring higher speed and lower power.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.