MAX4090EXT+

Video Amps And Modules Overview

The MAX4090EXT+T is a single-channel video buffer amplifier manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single supply voltage ranging from 2.7V to 5.5V and features an integrated input sync-tip clamp circuit. The device provides a typical voltage gain of 2 V/V (6dB) and supports a small-signal bandwidth of 55 MHz with a slew rate of 275 V/µs. It consumes 6.5 mA of quiescent current in active mode, which reduces to 150 nA in shutdown mode. The component is housed in a 6-pin SC-70 surface-mount package and is specified for operation over the extended temperature range of -40°C to +85°C.

Video Amps And Modules Feature Summary

• Integrated active sync-tip clamp positions the video waveform at the output for DC-coupled driving.
• Low-power shutdown mode significantly reduces supply current for battery-powered applications.
• Designed to drive DC-coupled, back-terminated video loads in portable systems.

Video Amps And Modules Applications

• Portable video and game systems
• Digital camcorders and still cameras
• Video-enabled cell phones and PDAs

Video Amps And Modules Procurement Notes

Verify the specific ordering suffix EXT against the manufacturer's official documentation to confirm the exact package type and temperature rating. Confirm RoHS compliance status through the datasheet or manufacturer certification. Check for any recent product change notices regarding manufacturing location or material composition updates.

Video Amps And Modules Selection Notes

Select this component when a compact video buffer with built-in signal clamping is required for space-constrained designs. Ensure the application requires single-supply operation within the 2.7V to 5.5V range. Verify that the load impedance matches the design requirements for stable operation and proper signal integrity.

Video Amps And Modules Part Context

This part belongs to the MAX4090 family of high-speed video buffers. The family includes variants with different packages such as SOT23 and µDFN, and automotive-grade versions with extended temperature ranges up to +125°C. The MAX4090EXT+T specifically denotes the commercial grade version in the SC-70 package.

Video Amps And Modules Replacement Considerations

Consult the manufacturer's official cross-reference data for verified substitutes. Potential alternatives include other members of the MAX4090 family with compatible pinouts or functional equivalents from other manufacturers offering similar video buffer specifications.

Video Amps And Modules FAQ

How does the input sync-tip clamp function?

The active sync-tip clamp stores the clamp voltage on the input capacitor, positioning the minimum of the video signal at approximately 0.38V at the output to allow for DC-coupled driving.

What is the recommended input coupling method?

The input must be AC-coupled through a capacitor, typically 0.1µF, to allow the internal clamp circuit to function properly and meet line droop specifications.