AD725AR-REEL7

Overview

The AD725AR-REEL7 is a low-cost RGB to NTSC/PAL encoder manufactured by Analog Devices Inc. It converts red, green, and blue component signals into luminance and chrominance outputs compliant with NTSC or PAL standards. The device operates from a single +5 V supply with quiescent current of 30 mA in encode mode and less than 1 μA in power-down mode. It features TTL-compatible logic inputs and provides composite, S-video (luminance/chrominance), and luma trap outputs. Packaged in a 16-lead SOIC, it supports an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Converts RGB component signals to NTSC or PAL video standards
• Provides separate composite, luminance, and chrominance outputs
• Includes a luma trap port for reducing cross-color artifacts
• Supports low-power operation with power-down capability

Applications

• RGB/VGA to NTSC/PAL encoding
• Personal computers and network computers
• Video games
• Video conference cameras
• Digital still cameras

Procurement Notes

Verify the specific ordering suffix REEL7 confirms tape-and-reel packaging when sourcing components. Confirm that the manufacturer has discontinued this product line as indicated in public records. Ensure compatibility with existing system designs before procurement due to end-of-life status.

Selection Notes

Select this component for applications requiring cost-effective conversion of RGB signals to standard analog video formats. Verify that the system can provide the required 4FSC clock frequency and TTL-level sync signals. Consider the thermal characteristics of the SOIC package if high ambient temperatures are expected.

Part Context

The AD725 is part of Analog Devices' portfolio of video interface solutions designed for consumer electronics. It serves as a bridge between digital or RGB sources and analog display devices. The AR variant denotes the industrial temperature range and SOIC package style.

Replacement Considerations

Public confirmed substitute part numbers: None.