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ISO7421DR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ISO7421DR product

ISO7421DR

Digital Isolators

digital isolatorcapacitive isolationdual channel1 MbpsSOIC-8bidirectional channels

ISO7421DR is a dual-channel capacitive digital isolator for low-speed isolated logic links, with one channel in each direction and up to 1 Mbps signaling.

Best for

  • Isolated bidirectional control signals
  • Industrial fieldbus control interfaces
  • Motor-control and power-supply logic isolation

Avoid if

  • Data rates above 1 Mbps
  • Applications requiring two channels in the same direction
  • Interfaces needing a dedicated standards-compliant transceiver

Check before use

  • Verify ISO7421 channel direction and SOIC-8 pin assignment
  • Confirm insulation coordination for the end-equipment standard
  • Confirm operating-temperature grade from current ordering data

Key specifications

Channels
2 channels; 1 forward and 1 reverse
Data rate
Up to 1 Mbps
Isolation rating
2500 VRMS for 1 minute per UL 1577
Supply range
3.15 V to 5.25 V on each side
Package
SOIC-8, 1.27 mm pitch

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

Industrial control interfacesMotor controlIsolated power-supply control

Datasheet

Texas-Instruments-company-64.pdf

800 KB

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CAD Models

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EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

ISO7421DR is the tape-and-reel SOIC-8 ordering option of Texas Instruments' ISO7421 dual-channel capacitive digital isolator. It provides two isolated logic channels, with one signal path in each direction across the isolation barrier.