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)