HMC311SC70

Overview

The HMC311SC70 is a GaAs InGaP HBT gain block MMIC amplifier covering DC to 8 GHz. It provides 15 dB gain with an output IP3 of +30 dBm and P1dB of +15 dBm. The device operates from a single +5V supply, drawing 54 mA current. Key electrical parameters include a noise figure of 5 dB and input return loss of 15 dB. Power dissipation is rated at 340 mW. It functions in the -40°C to +85°C temperature range.

Feature Summary

• Utilizes GaAs InGaP Heterojunction Bipolar Transistor technology for high performance.
• Features Darlington topology to achieve reduced power consumption while maintaining gain.
• Packaged in industry-standard SC-70 surface-mount format for compact integration.

Applications

• GPS receiver front-end amplification
• General purpose RF signal chain stages
• Wireless communication system intermediate frequency amplification

Procurement Notes

Verify component authenticity through authorized channels as the HMC311SC70ETR variant indicates an End-of-Life status with specific discontinuation notices. Confirm RoHS compliance and MSL ratings against current manufacturing data sheets before procurement planning. Ensure compatibility with existing PCB footprints and thermal management requirements for the SC-70 package.

Selection Notes

Select this component when a wideband DC-to-8 GHz response is required alongside moderate gain and linearity. The low noise figure suits sensitive receiver applications. Consider the SC-70 footprint constraints and verify that the 5V supply voltage aligns with system power architecture. Evaluate thermal dissipation capabilities within the target enclosure design.

Part Context

This part belongs to the HMC311 series of InGaP HBT gain block amplifiers manufactured by Analog Devices Inc. It serves as a monolithic microwave integrated circuit designed for surface-mount technology. The series targets applications requiring reliable RF amplification across broad frequency bands with minimal external components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The HMC311SC70ETR variant is listed as obsolete. Consult official manufacturer resources for potential cross-reference options or updated product lines.