MAX9503METE+T

Video Amps And Modules Overview

The MAX9503METE+T is a DirectDrive video amplifier with an integrated reconstruction filter, manufactured by Analog Devices Inc. (Maxim Integrated). It operates from a single 2.7V to 3.6V supply and features a preset voltage gain of 12dB. The device utilizes an internal charge pump and linear regulator to generate a negative supply, enabling DC-coupled output with the black level set to ground. It includes a six-pole Butterworth lowpass filter for signal smoothing. The component is specified over an extended temperature range of -40°C to +85°C and is housed in a 16-pin TQFN package.

Video Amps And Modules Feature Summary

• DirectDrive technology eliminates large output-coupling capacitors by creating a clean negative power supply via an integrated charge pump and linear regulator.
• Integrated six-pole Butterworth reconstruction filter smooths DAC steps and reduces high-frequency spikes on the video signal.
• Features a low-power shutdown mode that reduces quiescent current to less than 10nA when the SHDN pin is grounded.
• Includes internal short-circuit protection to prevent damage if the video output connector is shorted to a supply or ground.

Video Amps And Modules Applications

• Digital Still Cameras
• Mobile Phones and Smartphones
• Security Cameras
• Portable Media Players

Video Amps And Modules Procurement Notes

Verify the specific ordering suffix 'ETE' corresponds to the 16-pin TQFN package configuration as documented in the official datasheet. Confirm the 'M' variant designation indicates the 12dB gain setting required for the application. Ensure compliance with the specified operating temperature range of -40°C to +85°C for environmental suitability.

Video Amps And Modules Selection Notes

Select this component for space-constrained portable devices requiring a compact, integrated solution for standard-definition video signals. The choice depends on the need for a 12dB preset gain and the requirement to drive video directly from a DAC without external coupling capacitors. Consider the low-power shutdown capability for battery-operated applications where minimizing standby current is critical.

Video Amps And Modules Part Context

This part belongs to the MAX9503 series of DirectDrive video amplifiers. The series offers variants with different gain settings, specifically 6dB and 12dB options. The METE suffix identifies the specific package type and thermal characteristics within the product line, distinguishing it from QSOP alternatives while maintaining the same core functional specifications and performance metrics.

Video Amps And Modules Replacement Considerations

The MAX9503GEEE+T serves as a functional substitute within the same family, offering identical circuitry but with a 6dB preset gain instead of 12dB. Designers must verify that the lower gain meets the system requirements before substituting. Other package variants like the MAX9503GETE+T share the same electrical characteristics but differ in physical footprint.

Video Amps And Modules FAQ

How does the MAX9503 handle the video black level?

The MAX9503 uses DirectDrive technology to shift the video black level to ground at the output, allowing the active video to remain above ground while sync pulses swing below ground.

What is the purpose of the internal reconstruction filter?

The internal six-pole Butterworth lowpass filter smooths the steps and reduces spikes created by the digital-to-analog converter (DAC) output, attenuating frequencies significantly above the video passband.