HMC320MS8G

Overview

The HMC320MS8G is a low-cost C-band fixed gain Low Noise Amplifier (LNA) operating in the 5.0 to 6.0 GHz range. It utilizes a single positive supply voltage settable between +3V and +5V. At +3V bias, the device provides a noise figure of 2.5 dB, 12 dB gain, and better than 10 dB return loss across the UNII band. The amplifier features adaptive biasing via an external resistor on the RES pin, allowing P1dB performance adjustment from +1 dBm to +13 dBm. Input IP3 is adjustable up to +10 dBm. The component is housed in an ultra-small 8-lead MSOP surface mount package measuring 14.8 x 14.8 x 1 mm.

Feature Summary

• Adaptive biasing capability allows selection of optimal P1dB performance using an external set resistor
• Adjustable input IP3 up to +10 dBm for flexible system integration
• Operates on a single positive supply voltage ranging from +3V to +5V
• Ultra-small 8-lead MSOP ground base surface mount plastic package

Applications

• UNII band applications
• HiperLAN systems
• Driver amplifier stages
• Local Oscillator buffer amplifiers

Procurement Notes

Verify the specific suffix (e.g., MS8G vs MS8GE) against the manufacturer's current ordering guide to ensure compliance with RoHS and lead-free requirements. Confirm availability status as some listings indicate obsolete or end-of-life classifications. Cross-reference the exact part number with official Analog Devices documentation to validate electrical parameters and package dimensions before procurement.

Selection Notes

Select this component for C-band applications requiring a fixed gain LNA with adjustable linearity characteristics. The adaptive bias feature enables optimization of power consumption versus output power based on specific system needs. Ensure the design accommodates the external resistor required for the RES pin to configure the desired P1dB level. Verify that the 8-lead MSOP footprint fits within the available PCB area constraints.

Part Context

The HMC320MS8G belongs to a family of GaAs MMIC low noise amplifiers designed for wireless communication bands. It shares the MSOP package form factor with other models like the HMC318, though it differs in functionality by offering fixed gain rather than variable gain. This specific model targets cost-sensitive implementations in the 5-6 GHz spectrum, distinguishing itself through its adjustable bias architecture compared to standard fixed-parameter LNAs.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source data.