The MAX4886 high-speed analog switch is ideal for HDMI/DVI switching applications, permitting 2:1 or 1:2 switching. The MAX4886 contains four differential pairs of 1:2 or 2:1 switches for RGB and clocking signals. The MAX4886 connects either one monitor to one of two digital video signals, or one HDMI/DVI source to one of two loads (sink). The MAX4886 set of differential switches is based on an nFET architecture with internal charge pump for gate overdrive. This advanced architecture results in an extremely low capacitance and on-resistance needed for the excellent return loss requirements for digital switching. An efficient internal charge-pump design offers very low quiescent current for power-sensitive notebook designs. The MAX4886 features 8Ω (typ) on-resistance and 2.5pF on-capacitance switches for routing RGB and CLK video signals. The MAX4886 is a high-frequency companion device to the MAX4929. These two devices combined perform the full 2:1 HDMI/DVI switching function. The MAX4886 is available in a space-saving, 42-pin, 3.5mm x 9.0mm TQFN package and operates over the extended -40°C to +85°C temperature range.
The MAX4886 high‑speed analog switch is designed for HDMI/DVI switching applications, providing 2:1 or 1:2 routing of RGB and clock signals. It uses an nFET architecture with an internal charge pump, delivering very low on‑resistance (8 Ω typ) and low on‑capacitance (2.5 pF typ) for excellent return‑loss performance in notebook and video equipment.
Key features include a 42‑pin TQFN package (3.5 mm × 9.0 mm), operation from –40 °C to +85 °C, supply voltage of 3.0 V–3.6 V, and a typical supply current of 700 µA. The datasheet provides absolute maximum ratings, electrical characteristics, pin descriptions, functional diagrams, timing diagrams, and layout recommendations for optimal high‑speed performance.
| On‑Resistance (Ron) | 8 Ω typ |
|---|---|
| On‑Capacitance (Con) | 2.5 pF typ |
| Skew | 20 ps typ |
| Supply Current | 700 µA typ |
| Bandwidth | 2.6 GHz typ |
| Insertion Loss | 0.6 dB typ |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 42‑pin TQFN, 3.5 mm × 9.0 mm |
| Supply Voltage Range | 3.0 V to 3.6 V |
The typical on‑resistance is 8 Ω.
It operates from 3.0 V to 3.6 V.
The device contains four differential pairs for HDMI/DVI switching.
Use impedance‑controlled traces of matched length, keep them short, and connect the exposed paddle to a solid ground plane.