BROADCOM HCPL-2212 1-Channel Optocoupler, 5Mbaud, 8-Pin DIP

The BROADCOM HCPL-2212 is a high-performance, single-channel optocoupler designed for reliable signal isolation in demanding electronic systems. It integrates an AlGaAs LED optically coupled to a detector featuring a totem pole output stage. A key benefit is the integrated Schmitt trigger within the optical receiver input, which provides clean, logic-compatible waveforms directly, eliminating the need for external wave-shaping circuitry and simplifying your design.

This component excels in noisy environments, thanks to a superior internal shield that guarantees a common mode transient immunity of 10kV/µs at a common mode voltage of 1000V. Its electrical and switching performance is rigorously guaranteed across an extended operating temperature range from -40°C to 85°C and a wide supply voltage (VCC) range of 4.5V to 20V. This wide VCC range, combined with a low input current requirement, ensures seamless compatibility with TTL, LSTTL, and CMOS logic families while contributing to lower overall power consumption compared to other high-speed couplers.

Signal transmission is both fast and reliable, with a typical propagation delay of just 150ns, guaranteed not to exceed 300ns over the full temperature range. The totem pole output structure means no external pull-up resistor is required, further reducing component count and board space. Additional features include built-in hysteresis for noise immunity and robust performance in industrial settings.

Key Applications

This optocoupler is an ideal solution for isolating high-speed digital signals and breaking ground loops in a variety of systems. Its primary uses include:

• Isolation of high-speed logic systems and microprocessor interfaces
• Elimination of ground loops to prevent noise and signal corruption
• Replacement of pulse transformers in switching applications
• Functioning as a high-speed line receiver