Overview
The HMC641ALC4 is a broadband non-reflective GaAs pHEMT SP4T (Single Pole Four Throw) switch designed and manufactured by Analog Devices Inc. This component is housed in a compact 4x4 mm ceramic package, making it ideal for applications requiring high performance in a small footprint. The switch operates over a wide frequency range from DC to 20 GHz, offering high isolation, low insertion loss, and integrated on-chip termination of isolated ports. It also features an on-board binary decoder circuit, reducing the number of required logic control lines from four to two, and is controlled using 0/-5V logic.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Insertion Loss | DC - 12 GHz | 1.8 | 2.1 | 2.8 | dB |
| Insertion Loss | DC - 20 GHz | 2.3 | 2.5 | 3.5 | dB |
| Isolation (RFC to RF1 - RF4) | DC - 12 GHz | 30 | 35 | 40 | dB |
| Isolation (RFC to RF1 - RF4) | DC - 20 GHz | 30 | 35 | 42 | dB |
| Return Loss “On State” | DC - 12 GHz | 18 | 20 | - | dB |
| Return Loss “Off State” | DC - 20 GHz | 19 | - | - | dB |
| Input Power for 1 dB Compression | 0.05 - 0.25 GHz | 10 | - | - | dBm |
| Input Power for 1 dB Compression | 0.25 - 20 GHz | 15 | - | - | dBm |
| Bias Voltage (Vss) | - | -5.0 | - | - | Vdc ±10% |
| Control Voltage Range (A & B) | - | Vss -0.5V to +1V | - | - | - |
Key Features
- Broadband performance from DC to 20 GHz
- High isolation: up to 42 dB at 12 GHz
- Low insertion loss: as low as 1.8 dB at DC - 12 GHz
- Integrated on-chip termination of isolated ports
- On-board binary decoder circuit reducing control lines from four to two
- Controlled with 0/-5V logic
- Fast switching speed
- Low DC current consumption compared to pin diode based solutions
- Compact 4x4 mm ceramic package
Applications
- Telecom Infrastructure
- Microwave Radio & VSAT
- Military & Space Hybrids
- Test Instrumentation
- SATCOM & Sensors
Q & A
- What is the frequency range of the HMC641ALC4 switch?
The HMC641ALC4 operates from DC to 20 GHz.
- What type of package does the HMC641ALC4 come in?
The HMC641ALC4 is housed in a compact 4x4 mm ceramic package.
- What are the key benefits of the on-board binary decoder circuit?
The on-board binary decoder circuit reduces the number of required logic control lines from four to two.
- How is the HMC641ALC4 controlled?
The HMC641ALC4 is controlled using 0/-5V logic.
- What are the typical applications of the HMC641ALC4?
The HMC641ALC4 is ideal for telecom infrastructure, microwave radio & VSAT, military & space hybrids, test instrumentation, and SATCOM & sensors.
- What is the insertion loss of the HMC641ALC4 at DC - 12 GHz?
The insertion loss is as low as 1.8 dB at DC - 12 GHz.
- What is the isolation of the HMC641ALC4 at 12 GHz?
The isolation is up to 42 dB at 12 GHz.
- How does the HMC641ALC4 compare to pin diode based solutions in terms of DC current consumption?
The HMC641ALC4 consumes much less DC current compared to pin diode based solutions.
- What is the return loss of the HMC641ALC4 in the “On State” at DC - 12 GHz?
The return loss is 18 dB in the “On State” at DC - 12 GHz.
- What is the maximum input power for 1 dB compression at 0.25 - 20 GHz?
The maximum input power for 1 dB compression is 15 dBm at 0.25 - 20 GHz.
