CA-IS3731CHW
CA-IS3731CHW
Active
Cost-effective Digital Isolators
The CA‐IS373xC devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS digital I/O. Each isolation channel has a logic input and output buffer separated by capacitive silicon dioxide (SiO2) insulation barrier, and each channel input integrated Schmitt trigger to provide excellent noise immunity. The CA‐IS3730C features 3 channels transferring digital signals in one direction and output enable for the B side is active‐high. The CA‐IS3731C device has two forward and one reverse‐direction channels, making it ideal for applications such as isolated SPI, RS‐485 communication. When the input is either not powered or is open‐circuit, the default output is low for devices with suffix L and high for devices with suffix H. The CA‐IS373xC devices are specified over the –40°C to +125°C operating temperature range and are available in 16‐pin wide‐body SOIC package.
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Features
Data rate
DC to 40Mbps
Robust isolation barrier
High lifetime: >40 years
Up to 5000VRMS isolation rating (wide‐body package)
±150kV/μs typical CMTIWide supply range
3.0V to 5.5V
Wide operating temperature range
–40°C to 125°C
No start‐up initialization required
Default output High (CA‐IS373xCH) and Low (CA‐ IS373xCL) Options
High electromagnetic immunity
Low power consumption
2.0mA per channel at 1Mbps with VDD = 5.0V
3.5mA per channel at 40Mbps with VDD = 5.0VBest in class propagation delay and skew
22ns typical propagation delay
2.5ns propagation delay skew (chip ‐to‐chip)
1ns pulse width distortion
20ns minimum pulse widthCMOS inputs logic
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Applications
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Industrial Automation
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Motor Control
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Medical Systems
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Isolated Power Supplies
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Solar Inverters
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Isolated ADC, DAC
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Simplified Functional Diagram
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Technical Documentation
Category
Title
Last Updated
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Title: Datasheet
Last Updated: Oct 11,2024
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Certification Standards
Category
Title
Certification Number
Date
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Title: Reliability Test
Certification Number: CA-IS37XCXW_V1.0
Date: Oct 11,2024
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Title: VDE
Certification Number: 40057278
Date: Aug 21,2023
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