The MAX4887 is a high-performance RGB video switch that supports 1:2 and 2:1 mode switching, has low on-resistance and low on-capacitance, supports 3V/5V single-supply power, and can be applied to notebooks, servers and routers, hubs, PC/HDTV monitors and other devices
The MAX4887 is a triple, high‑frequency video switch intended for notebook computers, monitors, docking stations, and similar applications. It routes RGB signals between one driver and two loads (1:2) or between two sources and one load (2:1) using three SPDT analog switches. The device uses an internal low‑noise charge pump to provide a high‑drive pull‑up, achieving low on‑resistance (≈5 Ω) and low on‑capacitance (≈10 pF) for high‑speed video signals.
The datasheet provides absolute maximum ratings, detailed electrical characteristics for 5 V and 3.3 V supplies, pin descriptions, layout recommendations, and ESD protection information. The part is supplied in a 3 mm × 3 mm, 16‑pin thin‑QFN package with an exposed paddle for grounding and is rated for operation from –40 °C to +85 °C.
| On‑Resistance (typical) | 5 Ω |
|---|---|
| On‑Capacitance (typical) | 10 pF |
| Supply Voltage Range (5 V version) | 4.5 V – 5.5 V |
| Quiescent Supply Current (standby) | < 3 µA |
| Operating Temperature Range | ‑40 °C to +85 °C |
| Package | 3 mm × 3 mm, 16‑pin TQFN |
| ESD Protection | ±8 kV HBM |
| Continuous Current Through Any Switch | ±120 mA |
| Peak Current Through Any Switch (1 ms, 10 % duty) | ±240 mA |
The MAX4887 operates with a supply voltage between 4.5 V and 5.5 V.
The device is supplied in a 16‑pin thin‑QFN package.
The typical on‑resistance is about 5 Ω.
Standby supply current is less than 3 µA.