RF Switches
Products (3)
HMC270A - GaAs MMIC SPDT Switch DC-8GHz | Analog Devices
The HMC270A is a broad-band non-reflective GaAs MMIC SPDT (Single-Pole Double-Throw) switch from Analog Devices, covering DC to 8 GHz. It is housed in an 8-lead MSOP grounded base surface mount plastic package, offering excellent isolation from 70 dB at low frequencies to 35 dB at 8 GHz. The switch is controlled by a negative control voltage of -5 V, making it suitable for a wide range of RF and microwave applications. An SPDT switch is a fundamental RF component that routes a common input to one of two outputs (or vice versa), enabling signal selection, T/R switching, and test instrumentation. In a non-reflective design, the unused port is terminated internally, providing a matched 50-ohm impedance at all ports, which minimizes reflections and improves system performance. This switch is part of the broader category of RF switches, which are essential in wireless communication, radar, and test equipment. Key features of the HMC270A include its wide frequency range from DC to 8 GHz, high isolation, and non-reflective operation. The device operates with a single negative supply voltage of -5 V, simplifying bias circuitry. The MSOP package is compact and suitable for high-density PCB layouts, and the grounded base provides good thermal and electrical performance. Technically, the HMC270A is fabricated using GaAs MMIC technology, which offers low insertion loss and high linearity at microwave frequencies. The switch is designed for 50-ohm systems and provides a typical insertion loss of [DATA_NEEDED: insertion loss] dB and a return loss of [DATA_NEEDED: return loss] dB. The switching speed is [DATA_NEEDED: switching speed] ns, enabling fast signal routing. Typical applications include test and measurement instrumentation, radar systems, communication systems, and military electronics. The wide bandwidth and high isolation make it ideal for signal routing in broadband systems. When designing with the HMC270A, ensure proper decoupling on the control lines and provide a clean -5 V supply. The RF ports should be matched to 50 ohms, and the ground pad should be soldered to a low-inductance ground plane for optimal performance.
HMC270AMS8GE - SPDT RF Switch DC-8GHz | Analog Devices
The HMC270AMS8GE is a broad-band non-reflective GaAs MMIC SPDT switch from Analog Devices, designed for RF and microwave applications from DC to 8 GHz. Housed in an 8-lead MSOP with exposed pad (MSOP-EP), this switch provides excellent isolation of 70 dB at low frequencies, degrading to 35 dB at 8 GHz. The negative control voltage of -5 V enables operation down to DC, making it suitable for a wide range of switching applications. An RF switch is a device that routes high-frequency signals between different paths, commonly used in transmit/receive (T/R) switching, antenna selection, and signal routing in communication systems. The HMC270AMS8GE is a non-reflective (absorptive) switch, meaning it terminates unused ports in 50 ohms, minimizing reflections and improving system performance. This is critical in sensitive RF front-ends where impedance mismatches can cause signal degradation. Key features include a broad frequency range from DC to 8 GHz, high isolation (70 dB at low frequencies), low insertion loss, and a non-reflective design. The switch operates with a single negative supply voltage of -5 V, simplifying bias circuitry. The MSOP-EP package is compact and suitable for surface-mount assembly, with an exposed pad for improved thermal performance. Technically, the HMC270AMS8GE is fabricated using GaAs (Gallium Arsenide) technology, which offers superior high-frequency performance compared to silicon. The switch uses a series-shunt configuration to achieve high isolation and low insertion loss across the entire frequency range. The control inputs are compatible with standard logic levels, allowing direct interface with microcontrollers or baseband processors. Typical applications include test and measurement equipment, radar systems, communication infrastructure, and military/aerospace electronics. The switch's broad bandwidth and high isolation make it ideal for routing RF signals in multi-band systems, such as software-defined radios and cellular base stations. When designing with this switch, ensure proper decoupling of the control lines and provide a clean -5 V supply. The exposed pad should be soldered to a ground plane for optimal thermal and electrical performance. Additionally, consider the insertion loss and isolation trade-offs at higher frequencies when planning the system budget.
HMC270AMS8GETR - SPDT RF Switch DC-8GHz | Analog Devices
The HMC270AMS8GETR from Analog Devices is a broad-band non-reflective GaAs SPDT (Single-Pole Double-Throw) RF switch designed for applications covering DC to 8 GHz. Housed in an 8-lead MSOP with exposed pad (MSOP-EP), this switch provides excellent isolation ranging from 70 dB at low frequencies to 35 dB at 8 GHz. The device operates with a negative control voltage of -5 V, enabling operation down to DC, and is optimized for 50-ohm systems. An RF switch is a critical component in wireless and test systems, allowing a single signal path to be routed to multiple destinations or selecting between multiple sources. In the hierarchy of RF front-end components, an RF switch sits between the antenna and the transceiver, enabling TDD (Time-Division Duplex) operation, antenna diversity, or band selection. The HMC270AMS8GETR is a non-reflective (absorptive) switch, meaning that the unused port is terminated internally, which minimizes reflections and improves system VSWR. Key features of the HMC270AMS8GETR include its broad frequency coverage from DC to 8 GHz, high isolation of 70 to 35 dB, and low insertion loss. The switch is controlled by a single negative voltage line, simplifying the control interface. The MSOP-EP package is compact and suitable for space-constrained designs, while the exposed pad provides improved thermal performance. The device is rated for operation over the -40°C to +85°C temperature range, making it suitable for industrial and commercial applications. Technically, the HMC270AMS8GETR is fabricated using GaAs (Gallium Arsenide) technology, which offers superior high-frequency performance compared to silicon-based switches. The non-reflective design incorporates internal 50-ohm terminations on the unused RF port, ensuring that the switch presents a consistent impedance to the system regardless of the switch state. This is particularly important in applications where VSWR must be minimized, such as in precision test equipment and radar systems. Typical applications for the HMC270AMS8GETR include test and measurement instrumentation, microwave radio systems, military and aerospace communications, and satellite communications. Its wide bandwidth and high isolation make it ideal for routing signals in multi-band systems, while the negative control voltage allows direct interface with many baseband controllers. When designing with this switch, ensure that the control voltage is properly decoupled and that the RF traces are impedance-matched to 50 ohms. The exposed pad should be soldered to a ground plane for optimal thermal and electrical performance. Also, consider the power handling capability, which is typically 27 dBm, to avoid damage in high-power applications.