LT6555IGN#TRPBF

Analog Switches - Special Purpose Overview

The LT6555IGN#TRPBF is a high-speed triple 2:1 video multiplexer manufactured by Analog Devices Inc. in a 24-lead SSOP package. It features an internally fixed gain of 2, optimized for driving double-terminated 75Ω video loads. The device provides a –3dB small-signal bandwidth of 650MHz and a large-signal bandwidth of 450MHz at 2V P-P. Operating on dual supplies from ±2.25V to ±6V or a single supply from 4.5V to 12V, each amplifier draws 9mA. Key performance metrics include a 2200V/µs slew rate, 72dB channel separation at 10MHz, and a 6.5ns settling time.

Analog Switches - Special Purpose Feature Summary

• Triple 2:1 analog multiplexer architecture with integrated fixed gain of 2
• Optimized for high-resolution video signals with double-terminated 75Ω loads
• Separate power supply pins per amplifier to maximize channel isolation
• Low current consumption with high-impedance outputs when disabled

Analog Switches - Special Purpose Applications

• RGB video multiplexing
• UXGA video signal routing
• LCD projector systems

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix IGN#TRPBF against official documentation to confirm the SSOP package type and tape-and-reel packaging format. Ensure the component meets automotive qualification requirements if applicable to the design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before finalizing procurement.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring high-speed video switching with precise gain control. The fixed internal gain eliminates the need for external resistors, simplifying the circuit design. Consider the wide supply voltage range and low quiescent current when designing power management stages. Verify that the 24-lead SSOP package fits within the available PCB footprint constraints.

Analog Switches - Special Purpose Part Context

This part belongs to the LT6555 family of high-speed video multiplexers. It is functionally similar to other variants like the LT6555CUF but differs in package and temperature grade. The family is designed for professional video equipment where signal integrity and low distortion are critical. It serves as a core switching element in complex video distribution architectures.

Analog Switches - Special Purpose Replacement Considerations

LT6555CGN#PBF

Analog Switches - Special Purpose FAQ

How does the LT6555 handle input clamping?

The device uses input clamps referenced to the VREF pin to protect the input stage. Three transistors in series limit the input voltage to within three diode drops from VREF.

What is the recommended load for optimal performance?

The amplifiers perform optimally with a 150Ω load, which represents a double-terminated 75Ω cable configuration.

How is the enable function controlled?

The EN pin controls the shutdown mode. Pulling it low enables the amplifiers, while pulling it high or leaving it floating (via an internal pull-up) disables them.