ADA4412-3ARQZ

Overview

The ADA4412-3ARQZ is an integrated triple video filter and driver in a 20-lead QSOP package. It features sixth-order adjustable filters with selectable cutoff frequencies of 36 MHz, 18 MHz, and 9 MHz for RGB, HD/SD Y, C, and CV signals. The device provides a fixed throughput gain of ×2 and supports single +5 V or ±5 V supplies. Key specifications include a quiescent current of 53 mA (single supply) and a disable feature reducing current to 10 μA. Output offset is adjustable over an input-referred range of ±500 mV.

Feature Summary

• Integrates three independent sixth-order Butterworth video filters with selectable bandwidths optimized for various component video standards.
• Provides rail-to-rail output buffers capable of driving dual 75 Ω loads with a fixed gain of ×2.
• Includes a differential DC offset control mechanism allowing precise adjustment of the output voltage level.
• Features a low-power disable mode that significantly reduces supply current when the device is inactive.

Applications

• Video reconstruction filtering following DAC outputs in encoders
• Antialias filtering for high-definition video signal processing
• Signal conditioning for set-top boxes and HDTVs

Procurement Notes

Verify the specific ordering suffix (e.g., -R7, -RL) against the required reel quantity before procurement. Confirm that the lead-free (Z) designation matches environmental compliance requirements. Ensure the 20-lead QSOP package option aligns with the printed circuit board footprint design. Cross-reference the temperature range specification with the operational environment constraints.

Selection Notes

Select this component when a compact solution for triple-channel video filtering is required. It is suitable for designs needing flexible cutoff frequency selection via logic pins. Consider the power consumption profile if battery operation is critical, utilizing the disable feature. Verify that the input impedance and drive capabilities match the source and load requirements of the video chain.

Part Context

This part belongs to the Analog Devices ADA4412 series of integrated video filters. It is designed to replace discrete filter and buffer solutions, simplifying the design of high-performance video systems. The device integrates multiple functions into a single small outline package, reducing board space and component count for video encoder and decoder applications.

Replacement Considerations

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