Description
The Si871x/2x isolators are pin-compatible, single-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 Si871x/2x 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 Si871x/2x series offer longer service life and dramatically higher reliability compared to optocouplers. Ordering options include logic output with and without output enable options.

FEATUREs
■ High Speed: dc to 15 Mbps
■ 2.5 to 5.5 V logic output
■ 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
■ Wide range of product options
   •Inverting and non-inverting
   •Disable output high, low or tri-state
■ 1 channel diode emulator input
■ Propagation delay 30 ns
■ Up to 5000 VRMS isolation
■ 10 kV surge withstand capability
■ AEC-Q100 qualified
■ Wide operating temperature range
   •– 40 to +125 °C
■ RoHS-compliant packages
   •SOIC-8 (Narrow body)
   •DIP8 (Gull-wing)
   •SDIP6 (Stretched SO-6)