Dual channel standard digital isolators
Dual channel standard digital isolators

Product Details

General Description

The CA-IS372x-Q1 devices are high-performance dual – channel digital isolators with up to 3.75kVRMS (narrowbody package) or 5kVRMS (wide-body package) isolation rating and ultra-fast data rate. The CA-IS372x-Q1 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 for automotive applications.
The CA-IS3720-Q1 features two channels transferring digital signals in one direction for applications such as isolated digital I/O. The CA-IS3721-Q1/CA-IS3722-Q1 devices have 2 channels with 1 channel in each direction, making them ideal for isolating the Tx and Rx lines of a transceiver, such as RS485, CAN etc. 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-IS372x-Q1 family are specified over the -40°C to +125°C operating temperature range and are available in
8-pin SOIC narrow body package and 16-pin SOIC wide body package.

Data rate: DC to 150Mbps
Robust isolation barrierHigh lifetime: >40 years
Robust isolation barrierUp to 3750 VRMS isolation rating (Narrow body packages) and up to 5000 VRMS isolation rating (Wide body packages)
Robust isolation barrier±150 kV/μs typical CMTI
Wide supply range: 2.5V to 5.5V
Default output High (CA-IS372xL-Q1) and Low (CAIS372xH-Q1) Options
High electromagnetic immunity
No start-up initialization required
Schmitt trigger inputs
Low power consumption1.5mA per channel at 1Mbps with VDD = 5.0V
Low power consumption6.6mA per channel at 100Mbps with VDD = 5.0V
Best in class propagation delay and skew12ns typical propagation delay
Best in class propagation delay and skew2ns propagation delay skew (chip -to-chip)
Best in class propagation delay and skew1ns pulse width distortion
Best in class propagation delay and skew5ns minimum pulse width
Package options Narrow-body SOIC8(S) package
Package options Wide-body SOIC16(W) package
Safety regulatory approvals VDE 0884-11 isolation certification
Safety regulatory approvals UL according to UL1577
Safety regulatory approvals IEC 62368-1, IEC 61010-1, GB 4943.1-2011 and GB 8898-2011 certifications
AEC-Q100 qualified for automotive applicationGrade 1 operating temperature range: -40°C to 125°C
  • Industrial Automation
  • Automotive
  • Medical Systems
  • Isolated Power Supplies
  • Solar Inverters
  • Isolated RS485, CAN, RS232 etc.
Device information
Part Number PackagePackage Size (NOM)
SOIC8 (S) 4.9mm × 3.9mm
SOIC16-WB(W)10.30mm ×7.50 mm
Simplified Channel Structure

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