Triple Video Switch

The MAX4887 triple, high-frequency switch is intended for notebooks and monitors to permit RGB signals to be switched from one driver to one of two loads (1:2) or one of two sources to be connected to one load (2:1). The MAX4887 high-performance switch utilizes n-channel architecture with internal high-drive pullup from a low-noise charge pump, resulting in very low on-capacitance.

The MAX4887 features 5Ω (typ) on-resistance switches with 10pF on-capacitances for routing RGB video signals. A logic input enables or disables the internal charge pump for optimal frequency performances when operating at lower input voltages resulting in standby supply current less than 3µA. All RGB inputs/outputs are ESD protected to ±8kV Human Body Model (HBM) and feature a global input (active-low EN) that places all inputs and outputs in a high-impedance state.

The MAX4887 is available in a small 3mm x 3mm, 16-pin TQFN package for ease of assembly and flowthrough layout, resulting in minimum space requirement and simplicity in board layout. The MAX4887 operates over the -40°C to +85°C temperature range.

Applications

* Docking Stations * Notebook Computers * PC/HDTV Monitors * Servers and Routers

* +3V/+5V Single-Supply Operation

* Low RON

* 5Ω (V+ = 5V)

* Low 10pF (typ) CON

* Global ENABLE Input to Turn On/Off Switches

* Break-Before-Make Switching

* ±8kV HBM ESD Protection on I/Os

* Less than 1mA Supply Current (Charge Pump Enabled)

* Less than 3µA Standby Mode

* Charge-Pump Noise Lower than 1.5mVP-P

* Flowthrough Layout for Easy Board Layout

* Space-Saving Lead-Free (3mm x 3mm) 16-Pin TQFN Package