GRF2176

LNA with Selectable Gain

Tuning Range: 0.5 to 6 GHz

LNA with Selectable Gain

Tuning Range: 0.5 to 6 GHz

The GRF2176 is a two-stage GaAs pHEMT low noise amplifier targeting high-performance wireless infrastructure applications. The second stage can be bypassed with an independent control pin, thus allowing the device to support high and low gain modes of 32.9 and 16.3 dB, respectively.

For optimal efficiency and linearity, the amplifier was designed to operate with a single 5 V supply voltage while using only 64 mA of quiescent current. Supply voltages ranging from 2.7 to 6 V are also supported. Similarly, quiescent current can be increased beyond the native biasing point for enhanced linearity performance.

Categories & Markets

Applications

• 5G Sub-6 GHz Massive MIMO Base Stations
• TDD Small Cells and Cellular Repeaters
• High-Performance RF Infrastructure
  
  
  
  

Features

• Selectable High Gain and Low Gain Modes
• Excellent Linearity Performance Over Wide Bandwidths
• 2.7 to 6 V Supply Voltage
• Flexible Biasing Provides Latitude for Linearity Optimization
• 64 mA Native Mode Quiescent Current Consumption
• 50 Ω Single-Ended Input and Output Impedances with Proper Matching
• Process: GaAs pHEMT
• Compact 1.5 x 1.5 mm DFN-6 Package

Reference: High Gain Mode / 5 V / 64 mA / 3.75 GHz

• Gain: 32.9 dB
• P_SAT: 22 dBm
• NF: 0.65 dB (Eval Board)
• OP1dB: 19.6 dBm
• OIP3: 33.6 dBm

Reference: Low Gain Mode / 5 V / 28 mA / 3.75 GHz

• Gain: 16.3 dB
• NF: 0.68 dB (Eval Board)
• OP1dB: 15.1 dBm
• OIP3: 28.8 dBm