Overview
The Mini-Circuits PSA4-5043+ is a high-performance, ultra-low noise MMIC (Monolithic Microwave Integrated Circuit) amplifier. This E-PHEMT (Enhancement mode pseudomorphic High Electron Mobility Transistor) based amplifier operates over a broad frequency range from 50 MHz to 4 GHz, making it ideal for sensitive high dynamic range receiver applications. It is designed to provide a unique combination of low noise and high IP3 (Third-Order Intercept Point), which is crucial for maintaining both sensitivity and two-tone spur-free dynamic range in receiver front-end applications. The amplifier is supplied in a compact SC-70 (SOT-343) package, which is internally matched to 50 ohms, eliminating the need for external matching elements. It operates on a supply voltage of +3 to +5V, with a low current consumption of 33 mA at 3V and 56 mA at 5V, ensuring high reliability and low junction temperatures.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Frequency Range | 50 MHz to 4 GHz | GHz |
| Supply Voltage | +3V to +5V | V |
| Supply Current | 33 mA at 3V, 56 mA at 5V | mA |
| Noise Figure | 0.75 dB at 1 GHz, 0.98 dB at 2 GHz | dB |
| Gain | 18.4 dB at 1 GHz | dB |
| Output Power at 1dB Compression | +21 dBm | dBm |
| IP3 | 33.5 dBm at 1 GHz | dBm |
| Package Type | SC-70 (SOT-343) | - |
| Operating Temperature | -40°C to 85°C | °C |
| ESD Rating | Class 1B (500V, HBM) | - |
Key Features
- Ultra Low Noise Figure: 0.75 dB at 1 GHz and 0.98 dB at 2 GHz, measured in a 50 Ohm environment without any external matching.
- High IP3: Up to 33.5 dBm at 1 GHz, combining low noise and high IP3 for ideal performance in low noise receiver front-end applications.
- High Output Power: Up to +21 dBm output power at 1dB compression, supporting high linear dynamic range requirements.
- Broadband Operation: Operating from 50 MHz to 4 GHz, covering primary wireless communications bands such as Cellular, PCS, LTE, WiMAX.
- Internally Matched: No external matching elements required to achieve the advertised noise and output power over the full band.
- Compact Package: Supplied in a small SC-70 (SOT-343) package, suitable for modern electronic designs.
- High Reliability: Low small signal operating current maintains junction temperatures typically below 125°C at 85°C ground lead temperature.
- ESD Protection: Class 1B ESD rating (500V, HBM) with industry-leading ESD performance for a low noise amplifier.
Applications
- Cellular Communications: Suitable for various cellular standards including GSM, WCDMA, LTE.
- ISM (Industrial, Scientific, and Medical) Applications: Ideal for ISM band operations.
- WiMAX and WLAN: Applicable in WiMAX and WLAN systems.
- GPS and General Wireless Communications: Can be used in GPS and other wireless communication systems.
- Radar and Microwave Backhaul: Suitable for radar and microwave backhaul applications due to its high dynamic range and low noise characteristics.
Q & A
- What is the frequency range of the PSA4-5043+ amplifier?
The PSA4-5043+ operates from 50 MHz to 4 GHz.
- What is the typical noise figure of the PSA4-5043+ at 1 GHz?
The typical noise figure is 0.75 dB at 1 GHz.
- What is the output power at 1dB compression for the PSA4-5043+?
The output power at 1dB compression is up to +21 dBm.
- What is the IP3 of the PSA4-5043+ at 1 GHz?
The IP3 is up to 33.5 dBm at 1 GHz.
- What is the package type of the PSA4-5043+?
The package type is SC-70 (SOT-343).
- Is the PSA4-5043+ internally matched?
Yes, the PSA4-5043+ is internally matched to 50 ohms.
- What is the supply voltage range for the PSA4-5043+?
The supply voltage range is +3V to +5V.
- What is the typical supply current at 3V and 5V?
The typical supply current is 33 mA at 3V and 56 mA at 5V.
- Does the PSA4-5043+ have ESD protection?
Yes, it has a Class 1B ESD rating (500V, HBM).
- What are some typical applications of the PSA4-5043+?
Typical applications include cellular communications, ISM, WiMAX, WLAN, GPS, and general wireless communication systems.
