MAX4885ETJ+T

The MAX4885ETJ+T is a complete VGA 1:2 or 2:1 multiplexer in 32 pin TQFN package. It integrates high-bandwidth analogue switches and level-translating buffers to implement a complete 1:2 or 2:1 multiplexer for VGA signals. The device provides switching for RGB, display data channel (DDC) and horizontal and vertical synchronization (HSYNC, VSYNC) signals. A low-noise charge pump with internal capacitors provides a boosted gate drive voltage to improve performance of the RGB switches. In the 1:2 multiplexer mode, HSYNC/VSYNC inputs feature level-shifting buffers to support low voltage CMOS or standard TTL compatible graphics controllers. In the 2:1 multiplexer mode, the output buffers for the HSYNC/VSYNC inputs are disabled allowing bidirectional signalling. In both modes, DDC signals are voltage clamped to an external voltage to provide level translation and protection. The MAX4885 features a 5μA shutdown mode and is ESD protected to ±8KV human body model on externally routed pins.

• Supply voltage range is 4.5V to 5.5V
• Operating temperature range from -40°C to 85°C
• Low 5ohm (typ) on-resistance for R, G, B signals
• On-resistance matching is 0.5ohm and on-resistance flatness is 0.02ohm
• Low 13pF (typ) on-capacitance for R, G, B signals
• Break before make switching protects against circuit shorts
• Low 300μA supply current (lower than 1μA with charge pump disabled)

Applications

Signal Processing, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party