Overview
The HMC635 is a GaAs PHEMT MMIC (Monolithic Microwave Integrated Circuit) driver amplifier die designed and manufactured by Analog Devices Inc. This component operates within the frequency range of 18 to 40 GHz, making it ideal for various microwave and millimeter-wave applications.
The amplifier provides a gain of 19.5 dB and an output power of +23 dBm at 1 dB gain compression. It also features an output IP3 of +29 dBm and can deliver up to +24 dBm of saturated output power at 15% Power Added Efficiency (PAE).
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Frequency Range | 18 - 40 | GHz |
| Gain | 19.5 | dB |
| P1dB (Output Power at 1 dB Gain Compression) | +23 | dBm |
| Output IP3 | +29 | dBm |
| Saturated Output Power | +24 | dBm @ 15% PAE |
| Supply Voltage | +5 | V |
| Supply Current | 280 | mA |
| Input/Output Impedance | 50 Ohms | |
| Die Size | 1.95 x 0.84 x 0.10 | mm |
Key Features
- High gain of 19.5 dB and high output power capabilities.
- Internally matched to 50 Ohms, making it suitable for integration into Multi-Chip-Modules (MCMs).
- DC blocked I/Os for ease of use in various RF circuits.
- Operates from a single +5V supply, drawing 280 mA of current.
- Ideal for use as a driver amplifier for microwave radio applications or as an LO driver for mixers operating between 18 and 40 GHz.
Applications
- Point-to-Point Radios
- Point-to-Multi-Point Radios and VSAT (Very Small Aperture Terminal) systems.
- LO Driver for Mixers operating in the 18 to 40 GHz frequency range.
- Military and Space applications.
Q & A
- What is the frequency range of the HMC635?
The HMC635 operates between 18 and 40 GHz.
- What is the typical gain of the HMC635?
The typical gain of the HMC635 is 19.5 dB.
- What is the output power at 1 dB gain compression for the HMC635?
The output power at 1 dB gain compression is +23 dBm.
- What is the output IP3 of the HMC635?
The output IP3 of the HMC635 is +29 dBm.
- What is the supply voltage and current for the HMC635?
The HMC635 operates from a +5V supply and draws 280 mA of current.
- Is the HMC635 internally matched to 50 Ohms?
Yes, the HMC635 is internally matched to 50 Ohms.
- What are the typical applications of the HMC635?
The HMC635 is typically used in Point-to-Point Radios, Point-to-Multi-Point Radios, VSAT systems, as an LO driver for mixers, and in military and space applications.
- How should the HMC635 die be mounted and bonded?
The die should be attached directly to the ground plane eutectically or with conductive epoxy, and 50 Ohm microstrip transmission lines are recommended for bringing RF to and from the chip.
- What is the die size of the HMC635?
The die size of the HMC635 is 1.95 x 0.84 x 0.10 mm.
- What is the Power Added Efficiency (PAE) of the HMC635 at saturated output power?
The HMC635 achieves a PAE of 15% at saturated output power.
