1 MBaud Optocoupler for High-speed Applications

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Vishay’s new 1 MBaud high-speed optocouplers are optimized for galvanic noise isolation and breaking up ground loops in digital applications

Vishay has launched a new series of 1 MBd high-speed optocouplers featuring an open collector transistor output with Schmitt-Trigger functionality for easy integration into digital systems. The new VOH1016A series devices are designed for programmable logic controllers, serial data communication and bus systems, and switch mode power supplies.

New High-Speed Optocoupler with Schmitt-Trigger

The VOH1016A is a single channel 1 MBd optocoupler utilizing a high efficient input LED coupled with an integrated optical photodiode IC detector. The detector has an open collector transistor output with Schmitt-Trigger functionality.

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The new optocouplers provide a low typical turn-on threshold current of 0.65 mA and maximum supply current of 1.0 mA.

“The optocouplers’ low turn-on threshold current and supply current — combined with a guaranteed minimum common mode transient immunity (CMTI) of 10 kV/μs — make the devices perfect solutions for galvanic noise isolation and breaking up ground loops in digital applications,” according to the announcement.

In addition, the devices feature a wide power supply range from 3 V to 15 V to enable isolated level shifting in applications using different voltage domains.

The RoHS-compliant devices are latch-up and oscillation-free, feature guaranteed on/off threshold hysteresis, and offer high data rates to 2 MHz and a maximum rated withstand isolation voltage of 5000 VRMS.

Key features

  • High data rate 2 MHz (NRZ)
  • Latch-up and oscillation-free
  • Low turn-on threshold current 2 mA

Applications

  • Microprocessor system interface
  • Ground loop elimination
  • Galvanic noise isolation
  • Digital control power supply
  • Signal level translation
  • PLC, ATE input / output isolation
  • Computer peripheral interface
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Availability

Samples and production quantities of the VOH1016A series are available now, with lead times of six weeks.

More information can be found on www.vishay.com.

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