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ISO7321CDR

ISO7321CDR

Active
Texas Instruments

LOW-POWER, DUAL-CHANNEL, 1/1, 25-MBPS DIGITAL ISOLATOR

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ISO7321CDR

ISO7321CDR

Active
Texas Instruments

LOW-POWER, DUAL-CHANNEL, 1/1, 25-MBPS DIGITAL ISOLATOR

Find alt

Description

General part information

ISO7321C Series

ISO732x provide galvanic isolation up to 3000 VRMSfor 1 minute per UL and 4242 VPKper VDE. These devices have two isolated channels comprised of logic input and output buffers separated by silicon dioxide (SiO2) insulation barriers. ISO7320 has both channels in the same direction while ISO7321 has the two channels in opposite direction. In case of input power or signal loss, default output is ‘low’ for devices with suffix ‘F’ and ‘high’ for devices without suffix ‘F’. SeeDevice Functional Modesfor further details. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. ISO732x have integrated noise filters for harsh industrial environment where short noise pulses may be present at the device input pins. ISO732x have TTL input thresholds and operate from 3 V to 5.5 V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO732x have been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

ISO732x provide galvanic isolation up to 3000 VRMSfor 1 minute per UL and 4242 VPKper VDE. These devices have two isolated channels comprised of logic input and output buffers separated by silicon dioxide (SiO2) insulation barriers. ISO7320 has both channels in the same direction while ISO7321 has the two channels in opposite direction. In case of input power or signal loss, default output is ‘low’ for devices with suffix ‘F’ and ‘high’ for devices without suffix ‘F’. SeeDevice Functional Modesfor further details. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. ISO732x have integrated noise filters for harsh industrial environment where short noise pulses may be present at the device input pins. ISO732x have TTL input thresholds and operate from 3 V to 5.5 V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO732x have been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

Technical Specifications

Parameters and characteristics for this part

SpecificationISO7321CDR
Channel TypeUnidirectional
Common Mode Transient Immunity (Min)25 kV/µs
Data Rate25 MBd
Fall Time (Typ)2.1 ns
Inputs - Side 11
Inputs - Side 21
Isolated PowerNo
Mounting TypeSurface Mount
Number of Channels2
Operating Temperature (Max)125 °C
Operating Temperature (Min)-40 °C
Package Length0.154 in
Package Name8-SOIC
Package Width3.9 mm
Propagation Delay tpHL (Max)57 ns
Propagation Delay tpLH (Max)57 ns
Pulse Width Distortion (Max)4 ns
Rise Time (Typ)2.4 ns
TechnologyCapacitive Coupling
TypeGeneral Purpose
Voltage - Isolation3 kV
Voltage - Supply (Maximum)5.5 V
Voltage - Supply (Minimum)3 V

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CAD

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