LMH6572MQ

Analog Switches - Special Purpose Overview

The LMH6572MQ is a triple 2:1 high-speed video multiplexer designed for professional-grade video and high-fidelity analog applications. It features a 350 MHz small-signal bandwidth and a 290 MHz large-signal bandwidth at 2 Vpp output levels. The device provides a fixed internal voltage gain of two, which results in a net unity gain when driving back-terminated transmission lines. Key performance metrics include a 140 MHz .1 dB bandwidth, a 1400 V/µs slew rate, and 10 ns channel switching time. It supports composite video formats with differential gain and phase errors of 0.02% and 0.02 degrees respectively. The component operates on supply voltages ranging from ±3V to ±6V.

Analog Switches - Special Purpose Feature Summary

• Triple 2:1 multiplexing architecture optimized for high-bandwidth analog signals
• High-speed channel switching with minimal signal distortion
• Internal gain of two for effective unity gain with back-terminated loads
• Wide supply voltage compatibility for flexible system integration

Analog Switches - Special Purpose Applications

• RGB video routing systems
• Multi-input video monitors
• Fault-tolerant data switches

Analog Switches - Special Purpose Procurement Notes

Verify the specific package marking LH6572MQ against the datasheet ordering information to confirm authenticity. Ensure that the application environment respects the absolute maximum ratings, particularly regarding junction temperature limits and power dissipation constraints inherent to the SSOP package. Confirm logic level compatibility for select and enable pins before finalizing the design implementation.

Analog Switches - Special Purpose Selection Notes

Select this component when high linearity and low distortion are required for video signal routing. The fixed internal gain simplifies circuit design by eliminating external feedback resistors for standard 75-ohm back-terminated loads. Consider thermal management requirements carefully due to the quiescent current consumption and the lack of internal thermal shutdown protection in the SSOP package.

Analog Switches - Special Purpose Part Context

The LMH6572 is part of a family of high-speed video multiplexers originally developed by National Semiconductor, now managed by Texas Instruments. It serves as a specialized solution for switching multiple video sources while maintaining signal integrity across high-frequency bands. The MQ suffix denotes the specific 16-pin SSOP physical package configuration used for surface-mount assembly.

Analog Switches - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.