MAX4394EUD+

Video Amps And Modules Overview

The MAX4394EUD+ is a triple-channel, unity-gain stable voltage-feedback operational amplifier manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates from single 4.5V to 11V or dual ±2.25V to ±5.5V supplies. Key electrical specifications include an 85MHz small-signal bandwidth, a 500V/μs slew rate, and a quiescent supply current of 6mA per amplifier. The device features rail-to-rail outputs, low differential gain/phase errors, and a dedicated disable pin that reduces current consumption to 450μA while placing outputs in a high-impedance state.

Video Amps And Modules Feature Summary

• Triple-channel architecture with integrated disable capability for power management
• High-speed performance featuring 85MHz bandwidth and 500V/μs slew rate
• Rail-to-rail output swing with input common-mode range extending to the negative supply rail
• Low distortion and excellent differential gain/phase characteristics suitable for video applications

Video Amps And Modules Applications

• Set-Top Boxes
• Surveillance Video Systems
• Analog-to-Digital Converter Interface
• CCD Imaging Systems
• Video Line Driver

Video Amps And Modules Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity and lead condition upon receipt. Ensure proper ESD handling procedures are followed during storage and assembly to maintain device reliability and performance specifications.

Video Amps And Modules Selection Notes

Select this component for designs requiring three independent high-speed amplifiers within a single package. The inclusion of a disable function makes it suitable for multiplexer or switch applications where power conservation is critical. Ensure the PCB layout supports high-frequency operation to fully utilize the device's bandwidth capabilities.

Video Amps And Modules Part Context

This part belongs to the MAX4389/MAX4390/MAX4392–MAX4396 family of ultra-small, low-cost op amps. The MAX4394 specifically provides a triple-channel configuration, distinguishing it from the single-channel MAX4389/MAX4390, dual-channel MAX4392/MAX4393, and quad-channel MAX4395/MAX4396 variants within the same series.

Video Amps And Modules Replacement Considerations

Official substitutes within the same family include the MAX4394ESD+, which utilizes an SOIC-14 package instead of TSSOP. Other family members like the MAX4393 (dual) or MAX4396 (quad) may be considered if channel count requirements differ, provided pinout compatibility is verified.

Video Amps And Modules FAQ

How does the disable mode affect the output impedance?

When the DISABLE pin is active, the amplifier enters a low-power state where the output impedance increases to approximately 95kΩ, effectively isolating the output.

What is the recommended feedback resistor value for unity gain configurations?

A 24Ω resistor in series with the feedback path is recommended for unity gain configurations to optimize AC performance by reducing the Q of the parasitic LC circuit.

Can this amplifier drive highly reactive loads directly?

No, the device is not designed to drive highly reactive loads directly as this decreases phase margin. An isolation resistor should be placed between the amplifier and any capacitive load to prevent ringing and oscillation.