New Product Introduction

ON Semiconductor NCID9211

NCID(V)9211 - High speed dual-channel, bi-directional ceramic digital isolator

ON Semiconductor NCID9211 product illustration - pins and inside

ON Semiconductor, driving energy efficient innovations, has released the first devices from its new Ceramic Digital Isolator family that use ON Semiconductor’s patented galvanic off−chip capacitor isolation technology and optimized IC design to achieve high insulation and high noise immunity, characterized by high common mode rejection and power supply rejection specifications.

The NCID(V)9211 is a galvanically isolated full duplex, bi−directional, high−speed dual−channel digital isolator with output enable. This device supports isolated communications thereby allowing digital signals to communicate between systems without conducting ground loops or hazardous voltages.

The device is housed in a 16−pin wide body small outline package.

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  • The only Digital Isolator available that includes insulation
  • DTI (Distance Through Insulation): ≥ 0.5 mm
  • Maximum Working Insulation Voltage: 2000 Vpeak
  • Specifications Guaranteed Over 2.5 V to 5.5 V Supply Voltage and −40°C to 125°C Extended Temperature Range
  • High Speed:
    • 50 Mbit/s Data Rate (NRZ)
    • 25 ns Maximum Propagation Delay
    • 10 ns Maximum Pulse Width Distortion
  • No insulation material wear out over time up to 1500V, no LED degradation, consistent performance from device-to-device
  • 100 KV/µs Minimum Common Mode Rejection
  • Full Duplex, Bi−directional Communication  
  • 8 mm Creepage and Clearance Distance to Achieve Reliable High Voltage Insulation
  • Over Temperature Detection 
  • AEC−Q100 qualified: NCIV9211 (Pending) 
  • Output Enable Function (Primary and Secondary Side)  
  • Safety and Regulatory Approvals (Pending)
    • UL1577, 5000 VRMS for 1 Minute
    • DIN VDE V 0884−11



  • Performance of a Digital Isolator with safety of an optocoupler
  • Off−Chip Capacitive Isolation to Achieve Reliable High Voltage Insulation
  • Better safety and long term reliability vs.other Digital Isolation methodologies
  • Device performance across voltage and temperature is predictable and doesn't require overdesign
  • Better performance than optocoupler solutions
  • Longer life time expectancy than optocouplers and other Digital Isolators in the market
  • Improves noise immunity while meeting stringent EMC/EMI performance requirements



  • Isolated PWM Control
  • Industrial Field-bus Communications
  • Microprocessor System Interface
  • SPI
  • Programmable Logic Control
  • Isolated Data Acquisition System
  • Voltage Level Translator



ON Semiconductor NCID9211 - package and pins

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