CA-IS3720LG
Dual channel standard digital isolators
CA-IS3720LG
Dual channel standard digital isolators

Product Details

General Description

The CA-IS372x devices are high-performance dual – channel digital isolators with up to 3.75kVRMS (narrow-body package) and 5kVRMS (wide-body package) isolation rating and ultra-fast data rate. The CA-IS372x devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS digital I/Os. 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-IS3720 features 2 channels transferring digital signals in one direction for applications such as isolated digital I/O. The CA-IS3721/CA-IS3722 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 family are specified over the -40°C to +125°C operating temperature range and are available in 8-pin SOIC narrow body package, 8-pin SOIC wide body package and 16-pin SOIC wide body package.

Features
名称参数
Data rateDC to 150Mbps
Wide supply range2.5V to 5.5V
Robust isolation barrierHigh lifetime: >40 years
Up to 3750 VRMS isolation rating (Narrow body packages) and up to 5000 VRMS isolation rating (Wide body packages)
±150 kV/μs typical CMTI
Default output High (CA-IS372xL) and Low (CA-IS372xH) Options
High Electromagnetic Immunity
Low Power Consumption1.5mA per channel at 1Mbps with VDD = 5.0V
6.6mA per channel at 100Mbps with VDD = 5.0V
Best in class propagation delay and skew8ns typical propagation delay
1ns pulse width distortion
2ns propagation delay skew (chip -to-chip)
5ns minimum pulse width
Wide operating temperature range-40°C to 125°C
No Start-Up Initialization Required
Schmitt trigger inputs
Safety Regulatory ApprovalsVDE 0884-11 Reinforced Isolation
UL According to UL1577
IEC 62368-1, IEC 61010-1, GB 4943.1-2011 and GB 8898-2011 certifications
PackageSOIC8(S)、SOIC8(G)、SOIC16(W)
Applications

◎ Industrial Automation
◎ Motor Control
◎ Medical Systems
◎ Isolated Power Supplies
◎ Solar Inverters
◎ Isolated RS485, CAN, RS232 etc.

Device information
Part Number Package Package Size (NOM)
CA-IS3720
CA-IS3721
CA-IS3722
SOIC16-WB(W)10.30mm×7.50mm
CA-IS3720
CA-IS3721
CA-IS3722
SOIC8-WB(G)5.85mm×7.50mm
CA-IS3720
CA-IS3721
CA-IS3722
SOIC8(S)4.90mm×3.90mm
Simplified Channel Structure

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