High CMR, High Speed TTL Compatible Optocoupler

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The ACPL-W611/ACPL-P611 optocoupler is an optically coupled digital gate that combines a GaAsP light emitting diode and an integrated high gain photo detector. The output of the detector IC is an open collector Schottky clamped transistor. The internal shield provides a guaranteed common mode transient immunity specification of 10,000 V/μs for the ACPL-W611. This unique design provides maximum ac and dc circuit isolation while achieving TTL compatibility. The optocoupler ac and dc operational parameters are guaranteed from -40°C to 100°C allowing trouble-free system performance.

The ACPL-W611/ACPL-P611 is suitable for high speed logic interfacing, input/output buffering, as line receivers in environments that conventional line receivers cannot tolerate and are recommended for use in extremely high ground or induced noise environments.



  • 10 kV/μs minimum Common Mode Rejection (CMR)
    at VCM = 1000 V
  • High speed: 10 MBd typical
  • LSTTL/TTL compatible
  • Low input current capability: 5 mA
  • Guaranteed ac and dc performance over temperature:
    -40°C to 100°C
  • Stretched SO-6 package
  • Safety Approval:
    – UL Recognized: 3750 V rms for 1 minute and 5000 Vrms for 1 minute per UL1577
    – CSA
    – IEC/EN/DIN EN 60747-5-5


  • Isolated line receiver
  • Computer-peripheral interfaces
  • Microprocessor system interfaces
  • Digital isolation for A/D, D/A conversion
  • Switching power supply
  • Instrument input/output isolation
  • Ground loop elimination
  • Pulse transformer replacement
  • Power transistor isolation in motor drives
  • Isolation of high speed logic systems

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Product Type 10 MBd Logic Gate
Package Stretched SO6
VDD (V) 5
IF Min. (mA) 5.0
Prop Delay (tPLH) Max. (µs) 100.0
Prop Delay (tPHL) Max. (µs) 100.0
CMR (min.) (V/µs) 10000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 5000.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 891
Application Note3 i
Brochures1 i
Data Sheet1 i
Options Data Sheet6 i
Product Change Notice (PCN)10 i
Promotional Material2 i
Regulatory Certificate2 i
Selection Guide2 i
Technical Notes1 i
White Papers2 i
FAQs1 i