Overview
The HMC994A-SX, manufactured by Analog Devices Inc., is a GaAs MMIC (Monolithic Microwave Integrated Circuit) pHEMT (Pseudomorphic High Electron Mobility Transistor) Distributed Power Amplifier. This amplifier operates across a wide frequency range from DC to 30 GHz, making it highly versatile for various high-frequency applications. It is designed to provide high gain, high output power, and high linearity, which are critical for applications requiring robust and reliable signal amplification.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range | DC - 18 GHz | 18 - 26 GHz | 26 - 30 GHz | GHz |
| Gain | 11.5 dB | 14.5 dB | 15.5 dB | dB |
| Gain Flatness | ±0.25 dB | ±0.5 dB | ±0.15 dB | dB |
| Gain Variation Over Temperature | 0.004 dB/°C | 0.005 dB/°C | 0.01 dB/°C | dB/°C |
| Input Return Loss | 13 dB | 22 dB | 22 dB | dB |
| Output Return Loss | 18 dB | 20 dB | 20 dB | dB |
| Output Power for 1 dB Compression (P1dB) | 24.5 dBm | 28 dBm | 27.5 dBm | dBm |
| Saturated Output Power (Psat) | 29 dBm | 30 dBm | 30 dBm | dBm |
| Output Third Order Intercept (IP3) | 36 dBm | 39 dBm | 36 dBm | dBm |
| Noise Figure | 3.5 dB | 3 dB | 3.5 dB | dB |
| Supply Current (Idd) | 250 mA | 250 mA | 250 mA | mA |
| Supply Voltage | 8 V | 10 V | 11 V | V |
| Operating Temperature | -55 °C | - | 85 °C | °C |
| Storage Temperature | -65 °C | - | 150 °C | °C |
Key Features
- High gain of up to 14.5 dB across the frequency range.
- High output power with P1dB of +28 dBm and Psat of +30 dBm.
- High linearity with an output IP3 of +39 dBm.
- Internally matched 50 Ω input and output for easy integration into multi-chip modules (MCMs).
- Operates from a single +10 V supply, drawing 250 mA of current.
- Slightly positive gain slope from 2 to 20 GHz, ideal for EW, ECM, radar, and test equipment applications.
Applications
- Test Instrumentation: Ideal for high-frequency test and measurement equipment.
- Military & Space: Suitable for high-reliability and high-performance military and space applications.
- Microwave Radio & VSAT: Used in microwave radio and Very Small Aperture Terminal (VSAT) systems.
- Telecom Infrastructure: Applicable in telecommunications infrastructure requiring high-frequency amplification.
- Fiber Optics: Used in fiber optic communication systems for signal amplification.
Q & A
- What is the frequency range of the HMC994A-SX amplifier? The HMC994A-SX operates from DC to 30 GHz.
- What is the typical gain of the HMC994A-SX? The typical gain is 14.5 dB.
- What is the output power at 1 dB gain compression (P1dB)? The P1dB is +28 dBm.
- What is the output third-order intercept point (IP3)? The IP3 is +39 dBm.
- What is the supply voltage and current requirement? The amplifier operates from a +10 V supply and draws 250 mA of current.
- What are the typical applications of the HMC994A-SX? It is used in test instrumentation, military and space, microwave radio and VSAT, telecom infrastructure, and fiber optics.
- How are the input and output matched? The input and output are internally matched to 50 Ω.
- What is the operating temperature range? The operating temperature range is from -55 °C to 85 °C.
- What is the storage temperature range? The storage temperature range is from -65 °C to 150 °C.
- Is the HMC994A-SX RoHS compliant? Yes, the HMC994A-SX is RoHS compliant.
