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SI8663ED-B-ISR

6-ch digital isolator, 5kVrms, 150Mbps, 35kV/us CMTI, 3/3 FWD/REV, 16-SOIC-W

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Manufacturer Part：

SI8663ED-B-ISR

Package：

16-SOIC Wide (10.3 x 7.5 x 2.35mm)

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Description

Product Overview

The SI8663ED-B-ISR from Silicon Labs (Skyworks) is a 6-channel general-purpose digital isolator with 5000Vrms isolation, 150Mbps data rate, 35kV/us CMTI, and 3/3 forward/reverse channel configuration. It operates from 2.5V to 5.5V in a 16-SOIC wide-body package.

Key Specifications

Manufacturer Silicon Labs / Skyworks
Type General Purpose Digital Isolator
Number of Channels 6 (3 forward, 3 reverse)
Isolation Voltage 5000Vrms
Data Rate 150Mbps
Common Mode Transient Immunity 35kV/us min
Propagation Delay 13ns max
Pulse Width Distortion 4.5ns max
Supply Voltage 2.5V to 5.5V
Supply Current 9.1mA max per side
Technology Capacitive Coupling
Package 16-SOIC Wide (10.3 x 7.5mm)
Operating Temperature -40C to +125C

Features

  • 6-channel isolation with 3 forward and 3 reverse channels
  • 5000Vrms isolation rating with reinforced insulation
  • High CMTI: 35kV/us minimum
  • 150Mbps data rate support
  • Low propagation delay: 13ns max
  • Capacitive coupling technology
  • Schmitt trigger inputs for noise immunity
  • Ultra-low power consumption
  • Selectable fail-safe mode
  • UL, CSA, VDE, and CQC safety certifications
  • AEC-Q100 qualified

Applications

  • Industrial automation and control
  • Isolated ADC and DAC interfaces
  • Motor drive and inverter isolation
  • Power supply isolation
  • Medical electronics

The Silicon Labs SI8663ED-B-ISR is an ultra-low-power 6-channel digital isolator using capacitive coupling technology. It offers substantial advantages over legacy optocoupler-based isolation in data rate, propagation delay, power consumption, size, reliability, and external BOM. The device supports data rates up to 150Mbps with less than 13ns propagation delay and 4.5ns pulse width distortion. The 5000Vrms isolation rating with reinforced insulation meets IEC 61010-1 and IEC 60950-1 safety requirements. The 3/3 channel configuration (3 forward, 3 reverse) is ideal for bidirectional communication interfaces like SPI and UART. Schmitt trigger inputs provide high noise immunity, and the selectable fail-safe mode controls output state during power loss.

The SI8663ED-B-ISR operates through capacitive coupling isolation: 1) Signal Transmission: High-speed digital signals are modulated and transmitted across on-chip silicon dioxide capacitors that provide the galvanic isolation barrier. The capacitors block DC and low-frequency common-mode voltages while passing the high-frequency modulated signal. 2) Demodulation: The receiving side demodulates the signal and reconstructs the original digital waveform with minimal propagation delay (10ns typ) and pulse width distortion (1.5ns typ). 3) Common-Mode Rejection: The capacitive coupling architecture provides inherent common-mode transient immunity of 35kV/us minimum, making the device suitable for noisy industrial environments. 4) Fail-Safe: When input power is lost, the outputs assume a predefined state (high or low, selected by ordering option) preventing undefined system behavior.

Pin Name Type Function
1 VDD1 Power Side 1 supply (2.5V to 5.5V)
2 INA Input Channel A input (forward)
3 INB Input Channel B input (forward)
4 INC Input Channel C input (forward)
5-6 OUTD/OUTE Output Channels D,E output (reverse)
7 OUTF Output Channel F output (reverse)
8 GND1 Ground Side 1 ground
9 GND2 Ground Side 2 ground
10 INF Input Channel F input (reverse)
11-12 INE/IND Input Channels E,D input (reverse)
13 OUTC Output Channel C output (forward)
14 OUTB Output Channel B output (forward)
15 OUTA Output Channel A output (forward)
16 VDD2 Power Side 2 supply (2.5V to 5.5V)
  • Isolated SPI communication between MCU and high-voltage ADC
  • Motor drive gate driver isolation with bidirectional fault signaling
  • Industrial PLC digital I/O channel isolation
Manufacturer Part Number Package Notes
Skyworks SI8663BD-B-ISR 16-SOIC-W 3.75kV version
TI ISO7763FDWR 16-SOIC-W 6-ch, 5kV, 100Mbps
ADI ADuM7643CRQZ 16-QSOP 6-ch, 5kV, 150Mbps
Renesas ISOW7843DFMR 16-SOIC-W 4-ch with integrated DC-DC
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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