ADIMAX22344CAAP+
Overview
The MAX22344CAAP+ is a high-speed, 4-channel unidirectional digital isolator using proprietary capacitive coupling technology to provide 3750Vrms of galvanic isolation. It supports extreme data rates up to 200Mbps with very low propagation delay, making it ideal for isolating fast digital interfaces like SPI and high-speed industrial fieldbuses. The device operates from a wide supply range of 1.71V to 5.5V and features high common-mode transient immunity of 50kV/us.
Why Choose This Part
This isolator offers a industry-leading 200Mbps throughput with a maximum propagation delay of just 9.4ns, ensuring minimal timing jitter in synchronous serial interfaces. It is highly efficient, consuming as little as 0.74mW per channel at 1Mbps with a 1.8V supply. Additionally, the pin-selectable default output states (high or low) allow designers to define safe-state behavior during power loss or signal failure.
Applications
Key Specifications
Getting Started
Integrate the MAX22344CAAP+ into your design by providing local decoupling capacitors (0.1uF) on both VDD pins. Ensure the PCB layout maintains the required creepage and clearance distances under the 20-SSOP package to preserve the 3750Vrms isolation rating. For evaluation, use the MAX22344EVKIT to test timing characteristics and power consumption across different voltage levels.
