HMC478SC70ETR

Overview

The HMC478SC70ETR is a SiGe HBT gain block MMIC amplifier from Analog Devices Inc., designed for surface-mount applications. It operates over a frequency range of DC to 4 GHz. The device provides a typical gain of 19 dB with a noise figure of 2.5 dB. It requires a single 5 V supply and draws 35 mA of current. Key performance metrics include a P1dB compression point of 12 dBm and an OIP3 of 24 dBm. The input return loss is specified at 20 dB, with power dissipation at 504 mW. It is housed in a compact SC-70-6 package.

Feature Summary

• Utilizes SiGe Heterojunction Bipolar Transistor (HBT) technology for high-performance RF amplification.
• Provides wideband coverage from DC to 4 GHz suitable for general-purpose RF applications.
• Features low power consumption with a single 5 V supply requirement.

Applications

• General purpose RF signal amplification
• Wireless communication systems
• Test and measurement equipment

Procurement Notes

Verify component authenticity through authorized channels due to lifecycle status. Confirm RoHS compliance details via official documentation. Ensure the SC-70-6 package variant matches design requirements. Check for obsolescence notices or end-of-life notifications from Analog Devices. Validate supply chain sources against manufacturer lists.

Selection Notes

Select this component for designs requiring wideband amplification up to 4 GHz in a small form factor. Consider the 5 V supply constraint and 35 mA current draw for power budgeting. Evaluate the 12 dBm P1dB limit against system linearity requirements. Compare noise figure specifications against receiver sensitivity needs. Ensure thermal management supports 504 mW dissipation in the SC-70-6 package.

Part Context

This part belongs to the HMC478 series of SiGe HBT gain block amplifiers. It shares architectural similarities with other devices in the family but differs in specific electrical parameters and packaging options. The SC-70-6 package distinguishes it from larger footprint variants like the MP86 or ST89 packages available within the same product line.

Replacement Considerations

• HMC476SC70ETR
• HMC474SC70ETR