Si87xx Optocoupler Replacement Isolators

The Si87xx isolators are pin-compatible, single-channel, drop-in optocoupler replacements with data rates up to 15 Mbps. These devices isolate high-speed digital signals and offer performance, reliability, and flexibility advantages not available with optocoupler solutions. The Si87xx series is based on Silicon Labs' proprietary CMOS isolation technology for low-power and high-speed operation and are resistant to the wear-out effects found in optocouplers that degrade performance with increasing temperature, forward current, and device age. As a result, the Si87xx series offer longer service life and dramatically higher reliability compared to a traditional optocoupler. Ordering options include open collector or push-pull outputs with and without integrated pull-up resistor and output enable pin.

Features

  • Pin-compatible, drop-in upgrades for popular high-speed digital optocouplers
  • Performance and reliability advantages vs. optocouplers
    • Resistant to temperature, age and forward current effects
    • 10x lower FIT rate for longer service life
    • Higher common-mode transient immunity: >50 kV/μs typical
    • Lower power and forward input diode current
  • PCB footprint compatible with optocoupler packaging
  • Wide range of product options
  • Diode emulator input
  • 3 to 30 V open collector output
  • Propagation delay 30 ns typical
  • Data rates from dc to 15 Mbps
  • 3.75 and 5 kV reinforced isolation
  • UL, CSA, VDE certifications
  • Wide operating temperature range –40 to +125 °C
  • RoHS-compliant packages


Si87xx Product Matrix

Devices
Part Number Data Sheet Evaluation Kit Max Propagation Delay (µs) Isolation Rating (kV rms) 10 kV Surge Enable Control Package Type Output Supply (V) Temperature Range (°C) Channel Type Forward Channels Reverse Channels Max Data Rate (bps) Default Output State Integrated Pull-Up AEC-Q100 Input Type
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si87xxSAMP-KIT 60 5 Yes No WB SOIC6 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSDIP6-KIT 60 5 Yes No WB SOIC6 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si871xSDIP6-KIT 60 5 Yes No WB SOIC6 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes No LGA8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes No LGA8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z Yes Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes No GW DIP8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z Yes Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes No NB SOIC8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z Yes Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes No LGA8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z Yes Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes Yes GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes Yes NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes Yes LGA8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes Yes GW DIP8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes Yes NB SOIC8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes Yes LGA8 3 30 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 60 3.75 Yes Yes GW DIP8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 60 3.75 Yes Yes NB SOIC8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si87xxLGA8-KIT 60 5 Yes Yes LGA8 3 30 -40 125 Unidirectional 1 0 1 Hi-Z No Yes LED Emulator
Si871xSDIP6-KIT 50 5 Yes No WB SOIC6 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes No GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes No NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes Yes GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 High No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes Yes NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 High No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes Yes GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes Yes NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes Yes GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes Yes NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSDIP6-KIT 50 5 Yes No WB SOIC6 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes No GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes No NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 Hi-Z No Yes LED Emulator
Si871xDIP8-KIT 50 3.75 Yes Yes GW DIP8 2.25 5.5 -40 125 Unidirectional 1 0 15 Low No Yes LED Emulator
Si871xSOIC8-KIT 50 3.75 Yes Yes NB SOIC8 2.25 5.5 -40 125 Unidirectional 1 0 15 Low No Yes LED Emulator
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