Overview
The HMC475ST89(E) is an InGaP Heterojunction Bipolar Transistor (HBT) Gain Block MMIC SMT amplifier produced by Analog Devices Inc. This amplifier operates over a wide frequency range from DC to 4.5 GHz, making it versatile for various RF and microwave applications. It is packaged in an industry-standard SOT89 package, which is compact and easy to integrate into different circuit designs. The amplifier is designed to serve as a cascadable 50 Ohm RF/IF gain stage as well as a Local Oscillator (LO) or Power Amplifier (PA) driver, capable of delivering up to +25 dBm output power.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Gain (DC - 1.0 GHz) | 19.5 | 21.5 | - | dB |
| Gain (1.0 - 2.0 GHz) | 17.5 | 19.5 | - | dB |
| Gain (2.0 - 3.0 GHz) | 14.5 | 16.5 | - | dB |
| Gain (3.0 - 4.0 GHz) | 11.5 | 13.5 | - | dB |
| Gain (4.0 - 4.5 GHz) | 9 | 12 | - | dB |
| Output IP3 at 850 MHz | - | +35 | - | dBm |
| P1dB Output Power | - | +22 | - | dBm |
| Supply Voltage | +8V | - | +12V | V |
| Supply Current | - | 110 | - | mA |
| Operating Temperature | -40 | - | +85 | °C |
Key Features
- High gain of 21.5 dB and high output IP3 of +35 dBm at 850 MHz.
- Single positive supply operation from +8V to +12V.
- Low supply current of 110 mA.
- Darlington topology for reduced sensitivity to process variations and excellent gain stability over temperature.
- Cascadable 50 Ohm RF/IF gain stage and LO or PA driver capabilities.
- Compact industry-standard SOT89 package.
Applications
- Cellular / PCS / 3G systems.
- Fixed Wireless & WLAN applications.
- CATV, Cable Modem & DBS systems.
- Microwave Radio & Test Equipment.
- IF and RF Applications.
Q & A
- Q: What is the frequency range of the HMC475ST89(E)?
A: The HMC475ST89(E) operates from DC to 4.5 GHz.
- Q: What is the typical gain of the HMC475ST89(E)?
A: The typical gain is 21.5 dB.
- Q: What is the output IP3 of the HMC475ST89(E) at 850 MHz?
A: The output IP3 is +35 dBm at 850 MHz.
- Q: What is the supply voltage range for the HMC475ST89(E)?
A: The supply voltage range is from +8V to +12V.
- Q: What is the typical supply current of the HMC475ST89(E)?
A: The typical supply current is 110 mA.
- Q: What is the operating temperature range of the HMC475ST89(E)?
A: The operating temperature range is from -40°C to +85°C.
- Q: What package type is the HMC475ST89(E) available in?
A: The HMC475ST89(E) is available in an industry-standard SOT89 package.
- Q: Can the HMC475ST89(E) be used as a LO or PA driver?
A: Yes, the HMC475ST89(E) can be used as a LO or PA driver with up to +25 dBm output power.
- Q: What are the typical applications of the HMC475ST89(E)?
A: Typical applications include cellular, fixed wireless, WLAN, CATV, cable modem, DBS, microwave radio, and test equipment.
- Q: Is the HMC475ST89(E) RoHS-compliant?
A: Yes, the HMC475ST89E version is RoHS-compliant.
