1 Features

1? Signaling Rate: 25 Mbps

? Integrated Noise Filter on the Inputs

? Default Output High and Low Options

? Low Power Consumption, Typical ICC per Channel

at 1 Mbps:

– ISO7340x: 0.9 mA (5-V Supplies),

0.7 mA (3.3-V Supplies)

– ISO7341x: 1.2 mA (5-V Supplies),

0.9 mA (3.3-V Supplies)

– ISO7342x: 1.3 mA (5-V Supplies),

0.9 mA (3.3-V Supplies)

? Low Propagation Delay: 31 ns

Typical (5-V Supplies)

? 3.3-V and 5-V Level Translation

? Wide Temperature Range: –40°C to 125°C

? 70-KV/μs Transient Immunity,

Typical (5-V Supplies)

? Robust Electromagnetic Compatibility (EMC)

– System-level ESD, EFT, and Surge Immunity

– Low Emissions

? Operates from 3.3-V and 5-V Supplies

? Wide-Body SOIC-16 Package

? Safety-Related Certifications:

– 4242-VPK Basic Isolation per DIN V VDE V

0884-10 and DIN EN 61010-1

– 3-KVRMS Isolation for 1 minute per UL 1577

– CSA Component Acceptance Notice 5A, IEC

60950-1 and IEC 61010-1 End Equipment

Standards

– GB4943.1-2011 CQC Certified

2 Applications

? Optocoupler Replacement in:

– Industrial Fieldbus

– Profibus

– Modbus

– DeviceNet Data Buses

– Servo Control Interface

– Motor Control

– Power Supplies

– Battery Packs

3 Description

The ISO734x family of devices provides galvanic

isolation up to 3000 VRMS for 1 minute per UL 1577

and 4242 VPK per VDE V 0884-10. These devices

have four isolated channels comprised of logic input

and output buffers separated by a silicon dioxide

(SiO2) insulation barrier.

The ISO7340x device has four channels in forward

direction, the ISO7341x device has three forward and

one reverse-direction channels, and the ISO7342x

device has two forward and two reverse-direction

channels. In case of input power or signal loss, the

default output is low for devices with suffix F and high

for devices without suffix F. See the Device

Functional Modes section for further details.