Low Noise Active Bias Low Noise Amplifier

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Broadcom’ MGA-684P8 is an economical, easyto-use GaAs MMIC Low Noise Amplifier (LNA).

The LNA has Low Noise and High Linearity achieved through the use of Broadcom's proprietary 0.25um GaAs Enhancement-mode pHEMT process.


  • Low noise Figure
  • High Linearity performance
  • GaAs E-pHEMT Technology
  • Low cost small package size: 2.0x2.0x0.75mm3
  • Excellent uniformity in product specifications
  • Tape-and-Reel packaging opyion available


  • Low noise amplifier for cellular infrastructure for GSM, TDS-CDMA, and CDMA
  • Other ultra low noise application
  • Repeater, Metrocell/Picocell application

Lifecycle Status


Replacement Part

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Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Obsolete
RoHS6 Compliant Y
Distrib. Inventory No
Frequency (GHz) 1.5-4.0
Bias Condition (V@mA) 5V@35mA
NF (dB) 0.56
Gain (dB) 17.6
P1dB (dBm) 22(OP1dB)
OIP3 (dBm) 32.4
Package QFN 2x2
Obsolescence Notice1 i
Product Change Notice (PCN)1 i
Reliability Data Sheet1 i
S-Parameter1 i