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MAX22441FAEE

Ultra-low power, 4-channel enhanced digital isolator

Applications:

4-20mA loop process control

Compact microPLC

Battery management

Parasitic power supply application

Description:

The MAX22441 is an ultra-low power, 4-channel enhanced digital electrical isolator family using ADI's proprietary process technology. The MAX22441 is available in a 16-pin QSOP package and can withstand 3kVRMS rated voltages up to 60 seconds and rated operating ambient temperatures from -40°C to +125°C.

These kits transmit digital signals between circuits with different power domains, with power consumption as low as 77.04μW per channel (1.8V power supply) at 1Mbps. The ultra-low power features help reduce system power consumption, improve reliability, and enable compact designs. The maximum data rate is 10Mbps and provides default high or default low output.

These kits have double low transmission latency and clock jitter, helping to reduce system latency. In addition, these kits are equipped with separate 1.71V to 5.5V power supplies on each side, making them ideal for use as level converters. Of the MAX22441's four channels, three transmit data in one direction and the other in the opposite direction.

Features:

Ultra-low power consumption

When VDD = 3.3V, 9.6µA per channel under DC conditions

VDD = 3.3V, 13.2µA per channel at 100kbps

When VDD = 3.3V, 47.6µA per channel at 1Mbps

Wide operating voltage range: 1.71V to 5.5V

Enhanced electrical isolation for digital signals

Withstand ±10kV surges in 1.2µs/50µs waveforms between GNDA and GNDB

High CMTI performance (200kV/μs, minimum)

16-pin QSOP package:

3000VRMS Isolation voltage continuous 60s (VISO)

445VRMS Continuous Operating Voltage (VIOWM)

Safety regulation certification

UL's UL1557 Certification (pending application)

VDE 0884-11 Reinforced insulation (TBD)

CSA IEC 62368-1 and IEC 61010-1 (pending application)

Low propagation delay and low jitter

Maximum data rate up to 10Mbps

Transmission delay of 43.8ns when VDD = 3.3V (typical value)

Clock jitter RMS is 35.0ps (typical)