LT6556CUF#PBF

Analog Switches - Special Purpose Overview

The LT6556CUF#PBF is a high-speed triple 2:1 video multiplexer with an internally fixed gain of 1, manufactured by Analog Devices Inc. It features a 750MHz small-signal bandwidth and a 450MHz large-signal bandwidth at 2VP-P. The device operates on dual supplies ranging from ±2.25V to ±6V or a single supply from 4.5V to 12V. Each amplifier draws 9.5mA with a disabled current below 330µA. It is housed in a 24-lead QFN (4mm × 4mm) package.

Analog Switches - Special Purpose Feature Summary

• Triple 2:1 video multiplexer architecture with individually buffered channels optimized for driving high-resolution signals.
• High channel separation performance achieved through separate power supply pins for each amplifier stage.
• Fixed internal gain of 1 eliminates the need for external resistors, simplifying circuit design.
• Low power consumption with fast shutdown capability via the enable control pin.

Analog Switches - Special Purpose Applications

• RGB video signal multiplexing
• UXGA resolution video switching
• LCD projector systems

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the UF package designation matches the required 24-lead QFN form factor. Ensure the C grade temperature range meets the operational requirements for the target environment.

Analog Switches - Special Purpose Selection Notes

Select this component over the LT6555 if a fixed gain of 1 is required rather than a gain of 2. Consider the SSOP package option if surface mount footprint constraints differ from the ultra-compact QFN layout. Verify that the 750MHz bandwidth sufficiently covers the highest frequency components of the video signals being processed.

Analog Switches - Special Purpose Part Context

This part belongs to the LT6556 family of high-speed video switches. It serves as a buffer and multiplexer solution for analog video signals. The CU variant specifically denotes the commercial temperature grade within the 24-lead QFN package configuration.

Analog Switches - Special Purpose Replacement Considerations

LT6555CUF#PBF offers similar functionality but provides a fixed gain of 2 instead of 1. LT6556IGN#PBF provides the same electrical specifications but utilizes a 24-lead SSOP package instead of the QFN form factor.