LNA with Selectable Gain
Tuning Range: 2.3 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 32.4 and 15.8 dB, respectively.
For optimal efficiency and linearity, the amplifier was designed to operate with a single 5 V supply voltage while using only 66 mA of quiescent current. Supply voltages ranging from 2.7 to 6 V are also supported. Similary, IDDQ can be increased beyong the native biasing point for enhanced linearity performance.
Product Categories
Applications
- 5G Sub-6 GHz Massive MIMO Base Stations
- TDD Small Cells and Cellular Repeaters
- High-Performance RF Infrastructure
Features
- Two Selectable Gain Modes: 32.4 & 15.8 dB
- Excellent Linearity Performance Over Wide Bandwidths
- 2.7 to 6 V Supply Voltage
- Flexible Biasing Provides Latitude for Linearity Optimization
- 66 mA Native Mode Quiescent Current Consumption
- 50 Ω Single-Ended Input and Output Impedances
Reference: High Gain Mode / 5 V / 66 mA / 3.75 GHz
- Gain: 32.4 dB
- NF: 0.68 dB (Eval Board)
- OP1dB: 20.9 dBm
- OIP3: 32 dBm
Reference: Low Gain Mode / 5 V / 28 mA / 3.75 GHz
- Gain: 15.8 dB
- NF: 0.65 dB (Eval Board)
- OP1dB: 13.9 dBm
- OIP3: 24.9 dBm
GRF-AN001: Designing for Low Noise and Excellent Matching in Amplifier Applications
GRF-AN002: Amplifier Design: Improving Gain Flatness Without Sacrificing Return Loss
GRF-AN005: Customizing an Amplifier's PSAT Output Level
GRF-AN006: Proper Procedures for Powering Up and Powering Down an RF Amplifier
GRF-AN007: Design Considerations for Ensuring Amplifier Stability
GRF-AN008: Is Matching the LNA Input for Γ OPT Always Worth the Effort?
GRF-AN009: Designing an Amplifier Lineup for SDARS Applications
GRF-AN010: Designing a High Performance, Single-SAW SDARS Solution
GRF-AN001: Designing for Low Noise and Excellent Matching in Amplifier Applications
GRF-AN002: Amplifier Design: Improving Gain Flatness Without Sacrificing Return Loss
GRF-AN005: Customizing an Amplifier's PSAT Output Level
GRF-AN006: Proper Procedures for Powering Up and Powering Down an RF Amplifier
GRF-AN007: Design Considerations for Ensuring Amplifier Stability
GRF-AN008: Is Matching the LNA Input for Γ OPT Always Worth the Effort?
GRF-AN009: Designing an Amplifier Lineup for SDARS Applications
GRF-AN010: Designing a High Performance, Single-SAW SDARS Solution