Overview
The HMC639ST89ETR from Analog Devices Inc. is a GaAs pHEMT (Pseudomorphic High Electron Mobility Transistor) amplifier, designed for high linearity, low noise, and wideband gain block applications. It operates over a frequency range of 0.2 to 4.0 GHz and is packaged in an industry-standard 3-lead SOT-89 package. This amplifier is versatile and can be used as a cascadable 50 Ohm gain stage, a PA Pre-Driver, a Low Noise Amplifier, or a Gain Block with up to +22 dBm output power. It is powered from a single +5V supply and does not require external matching components due to its internally matched topology.
Key Specifications
| Parameter | Min | Typical | Max | Units |
|---|---|---|---|---|
| Frequency Range | 0.2 | - | 4.0 | GHz |
| Gain | 10 | 13 | 16 | dB |
| Noise Figure (NF) | - | 2.3 | - | dB |
| Output Power for 1 dB Compression (P1dB) | 19 | 21 | 22 | dBm |
| Output Third Order Intercept (IP3) | 35 | 38 | - | dBm |
| Input Return Loss | - | 12 | - | dB |
| Output Return Loss | - | 12 | 14 | dB |
| Reverse Isolation | - | 20 | - | dB |
| Operating Temperature Range | -40 | - | 85 | °C |
| Supply Voltage (Vs) | - | 5 | - | V |
Key Features
- High Linearity and Low Noise Figure: The amplifier features a high output IP3 of +38 dBm and a low noise figure of 2.3 dB, making it suitable for applications requiring high signal integrity.
- Wideband Operation: Covers a frequency range of 0.2 to 4.0 GHz, making it versatile for various RF and microwave applications.
- Internally Matched Topology: No external matching components are required, allowing easy integration into different printed circuit board materials.
- Single +5V Supply: Simplifies power management and reduces the need for additional power supply components.
- Industry Standard SOT-89 Package: Easy to integrate into existing designs and compatible with standard manufacturing processes.
Applications
- Cellular / PCS / 3G: Suitable for cellular base stations and mobile communication systems.
- WiMAX, WiBro, & Fixed Wireless: Used in broadband wireless access systems.
- CATV & Cable Modem: Applicable in cable television and cable modem systems.
- Microwave Radio: Used in microwave radio communication systems.
- IF and RF Sections: Can be used in intermediate frequency (IF) and radio frequency (RF) sections of various communication systems.
Q & A
- What is the frequency range of the HMC639ST89ETR amplifier?
The HMC639ST89ETR operates over a frequency range of 0.2 to 4.0 GHz.
- What is the typical gain of the HMC639ST89ETR?
The typical gain is 13 dB.
- What is the noise figure of the HMC639ST89ETR?
The noise figure is typically 2.3 dB.
- What is the output power for 1 dB compression (P1dB) of the HMC639ST89ETR?
The output power for 1 dB compression is typically +21 dBm.
- What is the output third order intercept (IP3) of the HMC639ST89ETR?
The output third order intercept is typically +38 dBm.
- What is the supply voltage for the HMC639ST89ETR?
The supply voltage is +5V.
- Does the HMC639ST89ETR require external matching components?
No, it does not require external matching components due to its internally matched topology.
- What is the operating temperature range of the HMC639ST89ETR?
The operating temperature range is -40°C to +85°C.
- In what package is the HMC639ST89ETR available?
The HMC639ST89ETR is available in a 3-lead SOT-89 package.
- Is the HMC639ST89ETR RoHS compliant?
