QPA8840SR

RF Amplifiers Overview

The QPA8840SR is a GaAs MMIC RF amplifier from Qorvo, designed for CATV infrastructure applications. It operates within a frequency range of 50 MHz to 1.8 GHz and delivers a typical gain of 20 dB with a noise figure of 4.2 dB. The device requires a 12 V operating supply voltage and draws 425 mA of current. It features an input return loss of 20 dB and isolation of 25 dB. Packaged in SMD/SMT format, it supports Reel and Cut Tape configurations. The component functions reliably across a temperature range of -40°C to +100°C.

RF Amplifiers Feature Summary

• Ultra-linear GaAs MMIC construction for high-fidelity signal amplification
• Integrated power doubler architecture supporting 12 V operation
• Optimized for mid-stage or output stage amplification in cable systems

RF Amplifiers Applications

• CATV infrastructure amplification
• Mid-stage signal boosting in distribution networks
• Output stage amplification in headend systems

RF Amplifiers Procurement Notes

Verify the specific suffix (SR) against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure compatibility with 75 Ohm system impedance requirements. Check for recent Product Change Notifications regarding manufacturing updates. Confirm RoHS compliance status through official documentation before integration into final assemblies.

RF Amplifiers Selection Notes

Select this component for applications requiring ultra-linear performance in the 50 MHz to 1.8 GHz band. It is suitable where low noise figure and high isolation are critical for signal integrity. Consider the 12 V supply requirement and thermal management needs for the specified operating temperature range when designing the circuit layout.

RF Amplifiers Part Context

The QPA8840SR belongs to the QPA8840 series of radio frequency amplifiers manufactured by Qorvo. This series utilizes Gallium Arsenide (GaAs) technology to provide high linearity and gain stability. The SR variant specifically denotes the surface-mount packaging configuration available in reel or cut tape formats for automated assembly processes.

RF Amplifiers Replacement Considerations

Public confirmed substitute part numbers: QPA8840SB.