HMC454ST89E

Overview

The HMC454ST89E is a high dynamic range GaAs InGaP HBT MMIC amplifier manufactured by Analog Devices Inc. It operates within a frequency range of 400 MHz to 2.5 GHz and utilizes an SOT-89 surface-mount package. The device provides a typical gain of 12.5 dB with a noise figure of 6.5 dB. It features a P1dB compression point of 27.5 dBm and requires a supply voltage of 5 V with a current consumption of 175 mA.

Feature Summary

• High dynamic range performance utilizing GaAs InGaP Heterojunction Bipolar Transistor technology
• Wideband operation covering frequencies from 400 MHz to 2.5 GHz
• Compact SOT-89 surface mount package design for efficient board space utilization

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 distribution channels due to the discontinued status of this specific part number. Confirm that the SOT-89 footprint matches existing PCB layouts, as lead frame dimensions may vary slightly between manufacturing generations. Ensure thermal management strategies account for the specified power dissipation levels during integration into final assemblies.

Selection Notes

Select this component when a wide bandwidth up to 2.5 GHz is required alongside moderate gain specifications. Consider the 5 V supply requirement and 175 mA current draw against available power budgets. Evaluate the 6.5 dB noise figure against system sensitivity requirements and compare the 27.5 dBm output power against linearity needs in the target application environment.

Part Context

This model belongs to the HMC454 series of MMIC amplifiers designed for general RF applications. It represents a discontinuation event where Analog Devices ceased production of select Hittite Microwave products. The ST89 suffix indicates the specific SOT-89 surface mount packaging configuration used for this variant.

Replacement Considerations

Public documentation identifies the ADL5324ARKZ-R7 as a direct replacement option for the HMC454ST89ETR. Verify pin compatibility and electrical parameter alignment before substituting components in existing designs.