HMC476SC70ETR

Overview

The HMC476SC70ETR is a SiGe HBT gain block MMIC amplifier from Analog Devices, operating from DC to 6 GHz in an SC-70-6 package. It delivers 19 dB gain with a 2.5 dB noise figure and 12 dBm P1dB compression point. The device requires a 5 V supply and draws 35 mA current. Key performance metrics include a 24 dBm OIP3 and 20 dB input return loss. Power dissipation is rated at 504 mW. It functions as a single-channel RF amplifier suitable for high-frequency applications.

Feature Summary

• Utilizes SiGe HBT technology for high-performance amplification across DC to 6 GHz range
• Compact surface-mount design in industry-standard SC-70-6 package
• Optimized for low noise figure and high linearity in RF signal chains

Applications

• WiMAX and WiBro radio front-ends
• Cascaded 50 Ω RF/IF gain stages
• Local oscillator (LO) drivers
• Power amplifier (PA) drivers

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability should focus on surplus or secondary market sources rather than direct distribution channels. Confirm lot dates and authenticity when sourcing from non-primary vendors. Ensure compatibility with existing PCB footprints and thermal requirements before procurement. Check for valid replacement alternatives if new production is required.

Selection Notes

Select this part for applications requiring wideband DC-to-6 GHz amplification in a minimal footprint. Consider its 35 mA supply current and 5 V operation for power budgeting. Evaluate the 19 dB gain and 2.5 dB noise figure against system sensitivity requirements. Verify that the SC-70-6 package meets spatial constraints. Assess thermal management needs given the 504 mW power dissipation rating.

Part Context

The HMC476SC70ETR belongs to the HMC476 series of SiGe HBT gain block amplifiers. These devices are designed for monolithic microwave integrated circuit (MMIC) applications. The series offers consistent performance characteristics for RF and IF stages. The ETR suffix indicates tape and reel packaging for automated assembly processes.

Replacement Considerations

No public confirmed substitute part numbers are available.