Overview
The HMC641LC4TR is a broadband non-reflective GaAs pHEMT SP4T (Single-Pole, Four-Throw) switch manufactured by Analog Devices Inc. This component is designed to operate over a wide frequency range from DC to 20 GHz, making it suitable for various high-frequency applications. The switch is packaged in a compact 24-lead 4x4 mm ceramic QFN package, which includes an integrated 2:4 TTL decoder to simplify control logic.
The HMC641LC4TR is characterized by its high isolation, low insertion loss, and fast switching speeds. It is controlled using 0/-5V logic and consumes minimal DC current, making it an efficient alternative to pin diode-based solutions.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range | DC | - | 20 GHz | GHz |
| Insertion Loss | 1.6 | 2.3 | 3.5 | dB (DC - 12 GHz) |
| Insertion Loss | - | - | 2.8 | dB (DC - 20 GHz) |
| Isolation (RFC to RF1 - RF4) | 30 | 40 | - | dB (DC - 12 GHz) |
| Isolation (RFC to RF1 - RF4) | - | - | 42 | dB (DC - 20 GHz) |
| Return Loss “On State” | 17 | - | - | dB (DC - 12 GHz) |
| Return Loss “On State” | - | - | 18 | dB (DC - 20 GHz) |
| Return Loss “Off State” | - | - | 13 | dB (DC - 20 GHz) |
| Input Power for 1 dB Compression | 10 | - | - | dBm (0.05 - 0.25 GHz) |
| Input Power for 1 dB Compression | - | - | 20 | dBm (0.25 - 20 GHz) |
| Input Third Order Intercept (IIP3) | 30 | - | - | dBm (0.05 - 0.25 GHz) |
| Input Third Order Intercept (IIP3) | - | - | 39 | dBm (0.25 - 20 GHz) |
| Switching Characteristics tRISE, tFALL (10/90% RF) | - | 15 | - | ns |
| Switching Characteristics tON, tOFF (50% CTL to 10/90% RF) | - | 88 | - | ns |
| Operating Temperature | -40 | - | 85 | °C |
| Package / Case | - | - | - | 24-TFQFN Exposed Pad |
Key Features
- Broadband performance from DC to 20 GHz
- High isolation: up to 42 dB at 12 GHz
- Low insertion loss: 2.1 dB at 12 GHz
- Integrated 2:4 TTL decoder for simplified control logic
- On-chip termination of isolated ports
- Fast switching speeds: tRISE, tFALL = 15 ns, tON, tOFF = 88 ns
- Low DC current consumption
- Controlled with 0/-5V logic
- 50 Ohm impedance
- Absorptive topology
- Surface mount package (24-TFQFN Exposed Pad)
Applications
- Telecom Infrastructure
- Microwave Radio & VSAT
- Military & Space Hybrids
- Test Instrumentation
- SATCOM & Sensors
Q & A
- What is the frequency range of the HMC641LC4TR?
The HMC641LC4TR operates from DC to 20 GHz.
- What is the typical insertion loss of the HMC641LC4TR at 12 GHz?
The typical insertion loss is 2.1 dB at 12 GHz.
- What is the isolation of the HMC641LC4TR at 12 GHz?
The isolation is up to 42 dB at 12 GHz.
- How is the HMC641LC4TR controlled?
The HMC641LC4TR is controlled using 0/-5V logic.
- What is the switching speed of the HMC641LC4TR?
The switching characteristics are tRISE, tFALL = 15 ns and tON, tOFF = 88 ns.
- What is the operating temperature range of the HMC641LC4TR?
The operating temperature range is -40°C to 85°C.
- What package type does the HMC641LC4TR come in?
The HMC641LC4TR comes in a 24-TFQFN Exposed Pad package.
- Does the HMC641LC4TR have an integrated decoder?
Yes, it includes an integrated 2:4 TTL decoder.
- What are some typical applications of the HMC641LC4TR?
Typical applications include telecom infrastructure, microwave radio & VSAT, military & space hybrids, test instrumentation, and SATCOM & sensors.
- Is the HMC641LC4TR RoHS compliant?
Yes, the HMC641LC4TR is lead-free and RoHS compliant.
