AD8148ACPZ-R2

Overview

The AD8148ACPZ-R2 is a triple high-speed fully differential driver designed for wideband video applications. It features a fixed gain of 4 V/V and converts single-ended or differential inputs to differential outputs. Key electrical parameters include a 700 MHz -3 dB large signal bandwidth, a 900 MHz small signal bandwidth, and a 3000 V/µs slew rate. The device operates on supply voltages ranging from +4.5 V to ±5.5 V with a quiescent current of 62.5 mA at ±5 V. It incorporates internal common-mode feedback for output balance and includes an output pull-down feature for line isolation.

Feature Summary

• Triple differential driver architecture with fixed gain of 4 V/V
• Internal common-mode feedback network ensures high output balance
• On-chip sync-on common-mode encoding capability
• Output pull-down feature enables line isolation

Applications

• QXGA or 1080p video transmission
• KVM networking
• Video over unshielded twisted pair (UTP)
• Differential signal multiplexing

Procurement Notes

Verify the specific suffix R2 against the manufacturer's ordering guide to confirm tape-and-reel packaging specifications. Ensure compatibility with the LFCSP_WQ package outline dimensions during PCB layout. Confirm that the design supports the required thermal dissipation for the exposed paddle connection to maintain specified operating temperatures.

Selection Notes

Select this component when a fixed gain of 4 V/V is required for high-speed differential signaling. It is suitable for driving Category 5 UTP cables or differential PCB traces. Consider the AD8146 or AD8147 if a gain of 2 V/V is preferred instead. Ensure the application can accommodate the 62.5 mA quiescent current draw at ±5 V supplies.

Part Context

The AD8148 is part of the AD8146/AD8147/AD8148 family of triple differential drivers manufactured by Analog Devices. These devices are built on the second-generation XFCB bipolar process. They are designed to work in conjunction with receivers like the AD8145 and switches like the AD8117 to form complete video distribution systems supporting high-resolution signals.

Replacement Considerations

Public confirmed substitute part numbers: AD8146ACPZ-RL, AD8147ACPZ-RL.