Overview
The HMC641LP4E is a broadband non-reflective GaAs pHEMT SP4T (single-pole, four-throw) switch manufactured by Analog Devices Inc. This switch is housed in a compact 4x4 mm plastic package and operates over a wide frequency range from DC to 20 GHz. It is designed to offer high isolation, low insertion loss, and on-chip termination of isolated ports. The switch includes an integrated 2:4 binary decoder circuit, which reduces the number of required logic control lines from four to two, making it more efficient in terms of control logic. The HMC641LP4E is controlled with 0/-5V logic and exhibits fast switching speeds while consuming less DC current compared to pin diode-based solutions.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Frequency Range | DC - 20 GHz | - | - | - | GHz |
| Insertion Loss | DC - 12 GHz | 2.0 | 2.3 | 3.2 | dB |
| Insertion Loss | 12 GHz - 20 GHz | 3.0 | 3.5 | 4.2 | dB |
| Isolation (RFC to RF1 - RF4) | DC - 12 GHz | 30 | 35 | 42 | dB |
| Isolation (RFC to RF1 - RF4) | 12 GHz - 20 GHz | 30 | 35 | 40 | dB |
| Return Loss (On State) | DC - 12 GHz | - | 18 | - | dB |
| Return Loss (On State) | 12 GHz - 20 GHz | - | 17 | - | dB |
| Return Loss (Off State) | DC - 20 GHz | - | 13 | - | dB |
| Input Power for 1 dB Compression | 0.05 - 0.25 GHz | - | 10 | - | dBm |
| Input Power for 1 dB Compression | 0.25 - 20 GHz | - | 20 | - | dBm |
| Switching Rise and Fall Time | - | - | 30 ns | - | ns |
| On and Off Time | - | - | 100 ns | - | ns |
Key Features
- Broadband performance from DC to 20 GHz
- High isolation: up to 42 dB at 10 GHz
- Low insertion loss: 2.3 dB at 10 GHz
- On-chip termination of isolated ports
- Integrated 2:4 binary decoder circuit for reduced control logic
- Controlled with 0/-5V logic
- Fast switching speeds: 30 ns rise and fall time, 100 ns on and off time
- Low DC current consumption
- 24-lead, 4x4 mm SMT package
- ESD rating: 250 V (Class 1A)
Applications
- Telecom Infrastructure
- Microwave Radio and VSAT (Very Small Aperture Terminal)
- Military and Space Hybrids
- Test Instrumentation
- SATCOM (Satellite Communications) and Sensors
- Broadband Telecommunications Systems
- Military Radios, Radars, and Electronic Counter Measures (ECMs)
Q & A
- What is the frequency range of the HMC641LP4E switch?
The HMC641LP4E operates from DC to 20 GHz.
- What is the typical insertion loss of the HMC641LP4E?
The typical insertion loss is 2.3 dB at 10 GHz.
- What is the isolation performance of the HMC641LP4E?
The isolation is up to 42 dB at 10 GHz.
- How is the HMC641LP4E controlled?
The switch is controlled with 0/-5V logic and includes an integrated 2:4 binary decoder circuit.
- What is the switching speed of the HMC641LP4E?
The switching rise and fall time is 30 ns, and the on and off time is 100 ns.
- What are the typical applications of the HMC641LP4E?
It is used in telecom infrastructure, microwave radio, VSAT, military and space hybrids, test instrumentation, SATCOM, and broadband telecommunications systems.
- What is the package type and size of the HMC641LP4E?
The switch comes in a 24-lead, 4x4 mm SMT package.
- What is the ESD rating of the HMC641LP4E?
The ESD rating is 250 V (Class 1A).
- How does the HMC641LP4E handle isolated ports?
The switch includes on-chip termination of isolated ports.
- What is the power consumption of the HMC641LP4E?
The switch consumes less DC current compared to pin diode-based solutions.
