Ophir GRF-4003

The Ophir GRF-4003 is a broadband low-noise amplifier and linear driver module engineered for RF applications spanning 0.01 GHz to 3.8 GHz. It delivers 12.5 dB to 13 dB of gain with a noise figure of 0.75 dB to 0.85 dB, making it suitable for first-stage LNA implementations and driver stages in wireless infrastructure systems. The device achieves +25.0 dBm output power at 1 dB compression and +41.0 dBm third-order intercept point at 2.5 GHz, with internally matched 50 Ω input and output ports.

– Technical Specifications

• Frequency Range: 0.01 GHz to 3.8 GHz
• Gain: 12.5 dB to 13 dB
• Noise Figure: 0.75 dB to 0.85 dB
• Output Power (P1dB @ 2.5 GHz): +25.0 dBm
• Third-Order Intercept Point (OIP3 @ 2.5 GHz): +41.0 dBm
• Input Return Loss: -11 dB
• Supply Voltage: 1.8 V to 5.5 V (operating); 0 V to 6.0 V (absolute maximum)
• Supply Current: 95 mA (operating); 30 mA to 120 mA (selectable quiescent)
• Power Dissipation: 600 mW
• Package: 1.5 × 1.5 mm DFN-6 (SMD/SMT)
• Operating Temperature: -40°C to +105°C ambient
• Maximum Channel Temperature: 170°C (for MTTF > 10⁶ hours)
• ESD Protection: 1500 V CDM, 250 V HBM
• Moisture Sensitivity Level: MSL1

– Key Features

• 50 Ω internally matched input and output
• Low noise figure for sensitive receiver applications
• High linearity with +41.0 dBm OIP3
• Wide bandwidth from 100 MHz to 3.8 GHz
• Programmable supply current from 30 mA to 120 mA
• Single supply operation between 1.8 V and 5.5 V
• External DC blocks and bias choke required

– Typical Applications

• Small cell and cellular repeater systems
• Microwave backhaul
• Distributed antenna systems (DAS)
• First-stage low-noise amplification
• Linear driver amplifier stages
• Wireless infrastructure
• Test and measurement
• EMC testing environments

– Compatibility & Integration

The GRF-4003 is supplied in reel, cut tape, and MouseReel packaging formats. Gain adjustment is available via 0.1% steps through front panel controls (Gain, ALC, Up/Down) or remote interfaces including IEEE-488, RS-232, and RS-422.