MAX4447ESE+

Video Amps And Modules Overview

The MAX4447ESE+ is a single-ended-to-differential line driver designed for high-speed communications. It features a fixed gain of +2V/V and a small-signal bandwidth of 430MHz. The device delivers full-power bandwidths up to 405MHz with slew rates as high as 6500V/µs. It operates from ±5V supplies, providing differential output swings of ±6.2V into a 50Ω load. Key specifications include an output drive current of 130mA, ultra-low noise of 23nV/√Hz at 1MHz, and a spurious-free dynamic range of -78dB at 100kHz. The part includes a low-power enable mode that reduces quiescent current below 5.5mA.

Video Amps And Modules Feature Summary

• Converts single-ended signals to differential outputs using current feedback architecture for enhanced bandwidth.
• Features a low-power enable mode that places outputs in a high-impedance state while reducing current consumption.
• Provides excellent differential gain and phase characteristics with ultra-low noise performance.
• Includes output short-circuit protection to limit current when shorted to ground.

Video Amps And Modules Applications

• Differential Line Driver
• Single-Ended-to-Differential Conversion
• High-Speed Differential Transmitter
• Coaxial to Twisted-Pair Converter
• xDSL Applications

Video Amps And Modules Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet documentation. Confirm the package type matches the 16-pin Narrow SO specification. Ensure the operating temperature range aligns with industrial requirements of -40°C to +85°C. Cross-reference the ordering information to validate the specific suffix and revision level before integration.

Video Amps And Modules Selection Notes

Select this component for applications requiring fixed gain conversion from single-ended to differential formats. It is suitable for designs needing high slew rates and wide bandwidth without external gain-setting resistors. Consider the enable pin functionality if power management during idle states is required. Evaluate the supply voltage compatibility with standard ±5V systems.

Video Amps And Modules Part Context

This device belongs to the MAX4447/MAX4448/MAX4449 family of wideband line drivers. While the MAX4448 and MAX4449 offer variable gain configurations via external resistors, the MAX4447 provides a fixed internal gain. All variants share similar electrical characteristics regarding speed and drive capability but differ in gain flexibility and minimum stable gain settings.

Video Amps And Modules Replacement Considerations

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

Video Amps And Modules FAQ

How does the enable pin function?

The EN pin is an active-high, TTL-compatible input. Connecting it to VCC enables normal operation, while connecting it to GND activates low-power mode, reducing supply current and placing outputs in a high-impedance state.

What is the maximum output drive current?

The device can deliver an output current drive of 130mA, allowing it to drive loads such as 50Ω cables effectively.