ADA4859-3ACPZ-R7

Overview

The ADA4859-3ACPZ-R7 is a triple, single-supply, high-speed current feedback video amplifier with an integrated charge pump. It operates on supply voltages from 3 V to 5.5 V and provides a fixed gain of +2. The device features a large signal -3 dB bandwidth of 195 MHz at 5 V supply and a slew rate of 740 V/µs. Total quiescent current is 38 mA, reducible via a power-down feature. It includes a charge pump generating negative voltage for output swing extension and is housed in a 16-lead LFCSP package.

Feature Summary

• Integrated charge pump eliminates the need for external negative supplies to drive video signals below ground.
• Fixed internal gain configuration simplifies design by removing external feedback resistors.
• Power-down pin significantly reduces total supply current when amplifiers are inactive.
• High input common-mode voltage range supports AC and DC coupled video applications.

Applications

• Professional video line drivers
• Consumer video processing circuits
• Imaging systems requiring high-speed signal conditioning
• Active filter implementations

Procurement Notes

Verify the specific ordering suffix (R7) corresponds to the required tape and reel quantity during procurement. Confirm that the RoHS compliant status matches regulatory requirements for the target assembly process. Ensure the 16-lead LFCSP_VQ footprint aligns with the PCB layout guidelines provided in the datasheet outline dimensions section.

Selection Notes

Select this component when a triple amplifier solution is required for SD or HD video applications on a single positive supply. The fixed gain of +2 suits direct video driving into 75 Ω or 150 Ω loads. Consider the power-down functionality if system power management requires reducing quiescent consumption during idle states. Verify that the 195 MHz bandwidth meets the signal frequency requirements.

Part Context

This part belongs to the ADA4859-3 series of single-supply video amplifiers manufactured by Analog Devices Inc. It is designed specifically for professional and consumer video markets where board space savings and simplified biasing are critical. The integration of the charge pump distinguishes it from standard video amplifiers requiring dual supplies.

Replacement Considerations

ADA4859-3ACPZ-R2 and ADA4859-3ACPZ-RL are alternative packaging options within the same product family offering identical electrical specifications and functionality.