AD8147ACPZ-R7

Overview

The AD8147ACPZ-R7 is a high-speed triple differential driver designed for wideband video applications. It features a fixed gain of 2 V/V and converts differential or single-ended inputs to differential outputs. The device operates on supply voltages ranging from +5 V to ±5 V with a quiescent current of 61.5 mA at ±5 V. Key electrical specifications include a 600 MHz large signal bandwidth, a 3000 V/µs slew rate, and an output balance error of -52 dB at 50 MHz. It incorporates internal common-mode feedback and sync-on-common-mode encoding.

Feature Summary

• Integrates three fully differential drivers with a fixed gain of 2
• Encodes vertical and horizontal sync signals onto the output common-mode voltages
• Features an internal common-mode feedback network for balanced amplitude and phase matching
• Includes an output pull-down feature to facilitate line isolation and multiplexing

Applications

• QXGA or 1080p video transmission systems
• Video distribution over Category-5 UTP cables
• KVM networking infrastructure
• Differential signal multiplexing

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing components. Confirm that the AD8147 variant possesses the fixed gain of 2 and sync-on-common-mode capabilities distinct from other models in the series. Ensure compatibility with the required supply voltage range and thermal management requirements for the LFCSP package.

Selection Notes

Select this component for designs requiring precise sync-on-common-mode encoding for RGB video signals. It is suitable for driving unshielded twisted pair cables where differential signaling is necessary. Consider the 600 MHz bandwidth and 3000 V/µs slew rate for high-resolution video integrity. Verify that the fixed gain of 2 meets the system's amplification requirements without external resistors.

Part Context

This part belongs to the AD8146/AD8147/AD8148 family of triple differential drivers manufactured by Analog Devices. While sharing the same package and general architecture, the AD8147 is distinguished by its fixed gain of 2 and integrated sync-on-common-mode functionality. It complements receivers like the AD8145 and switches like the AD8117 in complete video distribution solutions.

Replacement Considerations

Public confirmed substitute part numbers: AD8146ACPZ-R7, AD8148ACPZ-R7.