HMC311ST89ETR

Overview

The HMC311ST89ETR is an InGaP HBT gain block MMIC amplifier manufactured by Analog Devices (formerly Hittite Microwave Corporation). It operates from DC to 6 GHz with a typical gain of 15 dB. The device provides a P1dB compression point of +15 dBm and an OIP3 of 31.5 dBm, while maintaining a noise figure of 5 dB. It functions on a single 5 V supply with a current draw of 55 mA. Packaged in an SOT-89-3 surface-mount case, it supports operation between -40°C and +85°C.

Feature Summary

• Utilizes InGaP HBT technology for high linearity and low power consumption
• Provides broadband amplification across the DC to 6 GHz frequency range
• Features a compact SOT-89-3 surface-mount package for space-constrained designs

Applications

• Double upconversion architectures
• Direct downconversion receivers
• Wideband low power amplifier stages

Procurement Notes

Verify the manufacturer status carefully, as sources indicate this specific part number may be discontinued or obsolete. Confirm availability through authorized distributors or surplus channels. Ensure the component matches the original Hittite specifications if used in legacy designs. Request full datasheets and traceability documentation to validate authenticity and performance characteristics before integration into production systems.

Selection Notes

Select this component when a wideband, low-noise gain stage is required up to 6 GHz. It is suitable for applications demanding moderate output power (+15 dBm P1dB) with minimal power consumption. Consider the SOT-89-3 package constraints for thermal management and PCB layout. Evaluate alternatives if higher gain or different packaging formats are necessary for the specific system architecture.

Part Context

This component belongs to the HMC311 series of GaAs/InGaP HBT gain blocks designed for RF front-end applications. These amplifiers are engineered to provide consistent performance across broad bandwidths, making them versatile for various wireless communication systems. The series emphasizes ease of implementation with integrated biasing requirements and stable impedance matching.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.