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High-speed communication

SI8642ED-B-ISR General Description

Silicon Labs' SI8642ED-B-ISR is a dual-channel digital isolator that offers reliable isolation between two circuits in high-speed communication applications. With a maximum data rate of 150 Mbps, reinforced insulation, and a wide operating voltage range, this isolator provides increased safety and protection. Its high CMTI performance makes it suitable for noisy industrial environments, while its low power consumption and compact SOIC-16 package make it perfect for space-constrained applications. Furthermore, its RoHS compliance and wide temperature range make it versatile for various industrial and automotive applications

Key Features

  •  High-speed operation
  • DC to 150 Mbps
  •  No start-up initialization required
  •  Wide Operating Supply Voltage
  • 2.5–5.5 V
  •  Up to 5000 VRMS isolation
  •  60-year life at rated working voltage
  •  High electromagnetic immunity
  •  Ultra low power (typical)
  • 5 V Operation
  • 1.6 mA per channel at 1 Mbps
  • 5.5 mA per channel at 100 Mbps
  • 2.5 V Operation
  • 1.5 mA per channel at 1 Mbps
  • 3.5 mA per channel at 100 Mbps
  •  Schmitt trigger inputs
  •  Selectable fail-safe mode
  • Default high or low output (ordering option)
  •  Precise timing (typical)
  • 10 ns propagation delay
  • 1.5 ns pulse width distortion
  • 0.5 ns channel-channel skew
  • 2 ns propagation delay skew
  • 5 ns minimum pulse width
  •  Transient Immunity 50 kV/µs
  •  AEC-Q100 qualification
  •  Wide temperature range
  •  –40 to 125 °C
  •  RoHS-compliant packages
  •  SOIC-16 wide body
  • SOIC-8 narrow body


Part Life Cycle Code Active Reach Compliance Code compliant
Additional Feature Also Requires VDD2 Supply from 2.375V to 5.5V Interface IC Type DIGITAL ISOLATOR
JESD-30 Code R-PDSO-G16 Moisture Sensitivity Level 2A
Number of Functions 4 Number of Terminals 16
Peak Reflow Temperature (Cel) 260 Surface Mount YES
Technology CMOS Terminal Form GULL WING
Terminal Position DUAL Series Si864x
Type General Purpose Isolated Power No
Number of Channels 4 Inputs - Side 1/Side 2 2/2
Channel Type Unidirectional Voltage - Isolation 5000Vrms
Common Mode Transient Immunity (Min) 35kV/µs Data Rate 150Mbps
Propagation Delay tpLH / tpHL (Max) 13ns, 13ns Pulse Width Distortion (Max) 4.5ns
Rise / Fall Time (Typ) 2.5ns, 2.5ns Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40°C ~ 125°C Mounting Type Surface Mount
Base Product Number SI8642 Package/Case SOIC-Wide-16

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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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