Active crosspoint switches and active analog multiplexers have high-impedance inputs and buffered outputs. The resulting benefit is that the input signal source is isolated from the output load.
Active Crosspoint Switches
|4 Outputs||8 Outputs||16 Outputs|
|16 Inputs||+5, ±5V|
|32 Inputs||+5, ±5V|
Active Analog Multiplexers
|1 Channel||≤ 5V, ±5V||+5V, ±5V||+5V, ±5V|
|3 Channels||+5V, ±5V|
|4 Channels||+5V, ±5V|
In comparison, passive analog multiplexers connect the input to the output through a low-resistance analog switch, and the input signal source must be able to drive the output load.
For digital video applications, Maxim also offers switches and fanout devices for DVI™/HDMI™/DisplayPort™ interfaces.