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1 Features

1? Signaling Rate: Up to 100 Mbps

? Wide Supply Range: 2.25 V to 5.5 V

? 2.25-V to 5.5-V Level Translation

? Wide Temperature Range: –55°C to +125°C

? Low-Power Consumption, Typical 1.7 mA per

Channel at 1 Mbps

? Low Propagation Delay: 11 ns Typical

(5-V Supplies)

? Industry leading CMTI (Min): ±100 kV/μs

? Robust Electromagnetic Compatibility (EMC)

? System-Level ESD, EFT, and Surge Immunity

? Low Emissions

? Isolation Barrier Life: >40 Years

? Wide Body SOIC-16 Package and Extra-Wide

Body SOIC-16 Package Options

? Safety and Regulatory Approvals:

– 8000-VPK Reinforced Isolation per DIN V VDE

V 0884-10 (VDE V 0884-10):2006-12

– 5.7-kVRMS Isolation for 1 Minute per UL 1577

– CSA Component Acceptance Notice 5A, IEC

60950-1 and IEC 60601-1 End Equipment

Standards

– CQC Certification per GB4943.1-2011

– TUV Certification per EN 61010-1 and EN

60950-1

– All DW Package Certifications Complete;

DWW Package Certifications Complete per

UL, VDE, TUV and Planned for CSA and CQC

2 Applications

? Industrial Automation

? Motor Control

? Power Supplies

? Solar Inverters

? Medical Equipment

? Hybrid Electric Vehicles

3 Description

The ISO7840x device is a high-performance, quadchannel

digital isolator with a 8000-VPK isolation

voltage. This device has reinforced isolation

certifications according to VDE, CSA, CQC, and TUV.

The isolator provides high electromagnetic immunity

and low emissions at low-power consumption, while

isolating CMOS or LVCMOS digital I/Os. Each

isolation channel has a logic input and output buffer

separated by a silicon-dioxide (SiO2) insulation

barrier.

This device comes with enable pins that can be used

to put the respective outputs in high impedance for

multi-master driving applications and to reduce power

consumption. The ISO7840 device has four forward

and zero reverse-direction channels. If the input

power or signal is lost, the default output is high for

the ISO7840 device and low for the ISO7840F

device. See the Device Functional Modes section for

further details.

Used in conjunction with isolated power supplies, this

device helps prevent noise currents on a data bus or

other circuits from entering the local ground and

interfering with or damaging sensitive circuitry.

Through innovative chip design and layout

techniques, electromagnetic compatibility of the

ISO7840 device has been significantly enhanced to

ease system-level ESD, EFT, surge, and emissions

compliance.

The ISO7840 device is available in 16-pin SOIC

wide-body (DW) and extra-wide body (DWW)

packages.