A2611 HCPL 2611 Logic Gate Optocoupler

A2611 (HCPL‑2611) High‑Speed Logic Gate Optocoupler – 10 MBd, 5 kV/µs, 8‑Pin Package

The A2611 (also known as HCPL‑2611) is a single‑channel logic‑gate optocoupler combining a GaAsP LED and high‑gain photodetector with an open-collector output stage. It provides isolation rated to 3.75 kVrms (UL) or 480 Vrms working voltage, and features a guaranteed common‑mode transient immunity of 10,000 V/µs (typical 15,000 V/µs at 400 V) across −40 °C to +85 °C.

This device supports 10 MBd data rate and TTL/LSTTL logic compatibility with fan‑out up to 8. It includes a strobe (enable) input, wired‑OR open collector output, and requires only 5 mA LED drive for a minimum 13 mA sink output. It is suitable for I/O buffering, microcontroller isolation, power supply control, line receivers, and harsh-noise environments such as switch‑mode PSUs and motor drives.

Key Specs • Data Rate: 10 MBd • Common‑Mode Transient Immunity: ≥ 10 kV/µs (up to 15 kV/µs at 400 V) • Isolation Voltage: 3.75 kVrms (UL), 480 Vrms working • Input LED Current: ~5 mA • Output Sink Current: ≥ 13 mA (fan‑out = 8) • Logic Compatibility: TTL, LSTTL, 5 V CMOS • Enable/Strobe Input: Yes • Output: Open‑collector, Schottky‑clamped • Temperature Range: −40 °C to +85 °C • Package: DIP‑8, also available SOIC‑8 • Compliance: UL1577, IEC60747‑5‑2, RoHS