Description
The Si87xx isolators are pin-compatible, one-channel, drop-in replacements for popular optocouplers 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 optocouplers. Ordering options include open collector output with and without integrated pull-up resistor and output enable options.

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
■ 1 channel diode emulator input
■ 3 to 30 V open collector output
■ Propagation delay 30 ns
■ Data rates dc to 15 Mbps
■ 3.75 and 5 kV reinforced isolation
   • UL, CSA, VDE
■ Wide operating temperature range
   • –40 to +125 °C
■ RoHS-compliant packages
   • SOIC-8
   • DIP8
   • SDIP6
   • LGA8

Applications
■ Industrial automation
■ Motor controls and drives
■ Isolated switch mode power supplies
■ Isolated data acquisition
■ Test and measurement equipment