The Mini-Circuits ZHL-3A+ is a medium-high power wideband linear amplifier engineered for HF/VHF systems, instrumentation, and communication applications demanding reliable signal amplification across 0.4 MHz to 150 MHz. It delivers 24 dB typical gain with ±1.0 dB flatness, maintains +29.5 dBm minimum output at 1 dB compression, and achieves +38 dBm typical IP3 for excellent linearity performance. Operating from a +24 V supply at 0.6 A typical, the amplifier presents 50-ohm impedance with input and output VSWR below 2.0:1 across the band.
Technical Specifications
• Frequency Range: 0.4 MHz to 150 MHz
• Impedance: 50 Ohms
• Gain: 24 dB typical; ±1.0 dB flatness maximum
• Output Power at 1 dB Compression: +29.5 dBm minimum
• Third Order Intercept Point (IP3): +38 dBm typical
• Noise Figure: 11.0 dB typical
• Input/Output VSWR: 2.0:1 maximum
• Supply Voltage: +24 V typical; +25 V maximum
• Supply Current: 0.6 A typical
• Operating Temperature: -20°C to +65°C
• Storage Temperature: -55°C to +100°C
– Key Features
• Flat gain response across entire operating band
• High linearity with +38 dBm typical IP3
• Low noise figure of 11.0 dB typical
• Compact S32 case form factor: 3.75 in. × 2.00 in. × 1.80 in.
• Available connector options: BNC or SMA variants
• 220 g weight (without heat sink)
– Typical Applications
• HF/VHF system amplification
• Test and measurement instrumentation
• General RF communication signal conditioning
• Wideband signal chain integration
– Compatibility & Integration
The ZHL-3A+ accepts BNC or SMA connectors depending on variant selection. Standard 50-ohm impedance matches conventional RF systems. DC power interface requires +24 V at 0.6 A typical operation.
