The Broadcom opto-coupler uses LED, packaging, and CMOS IC technologies to achieve excellent optical galvanic isolation at data rate of up to 15 Mbaud. The basic building blocks of the opto-coupler are a high-speed LED and a CMOS detector IC. The detector IC incorporates an integrated photodiode, a high-speed trans impedance amplifier, and a voltage comparator with an output driver.

Superior optical isolation and insulation
3.3V and 5V CMOS compatibility
Low power IDD: 1.5 mA max
Low LED driving current IF: 4 mA min
30 kV/μs min common-mode rejection (CMR)
–40°C to +125°C operating temperature range