Reinforced Digital Isolators

Product Details

General Description

The CA-IS384x devices are high-performance quad-channel digital isolators with precise timing characteristics and low power consumption. The CA-IS384x devices provide high electromagnetic immunity and low emissions, while isolating CMOS digital I/Os. All device versions have Schmitt trigger input for high noise immunity. Each isolation channel consists of a transmitter and a receiver separated by silicon dioxide (SiO2) insulation barrier. The CA-IS3840 device has all four channels in the same direction with output enable on the output side (B side), the CA-IS3841 device has three forward and one reverse-direction channels with output enable on both sides, the CA-IS3842 device has two forward and two reverse-direction channels with output enable on both sides. All devices have fail-safe mode option. If the input power or signal is lost, default output is low for devices with suffix L and high for devices with suffix H.

CA-IS384x devices has high insulation capability to handle noise and surge on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. High CMTI ability promises the correct transmission of digital signal. The CA-IS384x devices are available in 16-pin wide body SOIC packages. All products support insulation withstanding up to 5.7kVrms.

Signal RateDC to 150Mbps
Wide Operating Supply Voltage2.5V to 5.5V
Wide Operating Temperature Range -55°C to 125°C
No Start-Up Initialization Required
Default Output High and Low Options
High Electromagnetic Immunity
High CMTI ±150kV/µs (Typical)
Low Power Consumption (Typical)1.5mA per channel at 1Mbps with VDD = 5.0V
6.6mA per channel at 100Mbps with VDD = 5.0V
Precise Timing (Typical) 8ns Propagation Delay
1ns Pulse Width Distortion
2ns Propagation Delay Skew
5ns Minimum Pulse Width
Isolation Rating up to 5.7kVrm
Isolation Barrier Life>40 Years
Tri-state Outputs with ENABLE
Schmitt Trigger Inputs
RoHS-Compliant PackagesSOIC16 Wide Body
SOIC16 Extra Wide Body

◎ Industrial Automation
◎ Motor Control
◎ Medical Systems
◎ Isolated Power Supplies
◎ Solar Inverters
◎ Isolated ADC, DAC

Device information
Part Number PackagePackage Size (NOM)
SOIC16-WB(W) 10.30 mm × 7.50 mm
SOIC16- WWB(WW)10.30 mm × 14.00 mm
Simplified Channel Structure

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