Overview
The HMC550A and HMC550E are low-cost Single-Pole Single-Throw (SPST) Failsafe switches produced by Analog Devices Inc. These switches are packaged in 6-lead SOT26 plastic packages and are designed for switching applications that require low insertion loss and very low current consumption. They are particularly suited for IF and RF applications, including RFID, ISM, automotive, and battery-powered tags and portables.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range | DC | - | 6.0 GHz | GHz |
| Insertion Loss | 0.7 | 0.9 | - | dB |
| Isolation (DC - 2.0 GHz) | 15 | - | 25 | dB |
| Isolation (DC - 6.0 GHz) | 8 | - | 12 | dB |
| Return Loss (DC - 6.0 GHz) | 20 | - | - | dB |
| Input Power for 0.1 dB Compression (0.5 - 6.0 GHz) | 23 | 27 | - | dBm |
| Input Third Order Intercept (Two-tone Input Power = +17 dBm Each Tone) (0.5 - 6.0 GHz) | 52 | - | - | dBm |
| tRISE, tFALL (10/90% RF) | 40 | - | 50 | ns |
| tON, tOFF (50% CTL to 10/90% RF) | 40 | - | 50 | ns |
| Vdd Range | 1.2V | - | 5V | V |
| On State Current | - | 200 nA | - | nA |
Key Features
- Failsafe operation: The switch is normally 'On' when no DC bias is applied, ensuring low insertion loss from RF1 to RF2.
- Low insertion loss: Typical insertion loss of 0.7 dB from DC to 6 GHz.
- Very low on-state current: Only 200 nA, making it suitable for battery-powered applications.
- Wide Vdd range: Compatible with supply voltages from 1.2V to 5V.
- High IP3: Input third-order intercept point of +52 dBm, indicating high linearity.
- Compact SOT26 SMT package: Easy to integrate into various designs.
- Compatibility with CMOS and some TTL logic families: Simplifies integration with existing systems.
Applications
- RFID & Electronic Toll Collection (ETC).
- Tags, Handsets & Portables.
- ISM, WLAN, WiMAX & WiBro.
- Automotive Telematics.
- Test Equipment.
Q & A
- What is the frequency range of the HMC550A switch?
The HMC550A switch operates from DC to 6 GHz.
- What is the typical insertion loss of the HMC550A?
The typical insertion loss is 0.7 dB.
- What is the on-state current of the HMC550A?
The on-state current is 200 nA.
- What is the failsafe operation mode of the HMC550A?
The switch is normally 'On' when no DC bias is applied.
- What is the input third-order intercept point (IP3) of the HMC550A?
The IP3 is +52 dBm.
- What package type is the HMC550A available in?
The HMC550A is available in a 6-lead SOT26 plastic package.
- Is the HMC550A compatible with CMOS and TTL logic families?
Yes, it is compatible with CMOS and some TTL logic families.
- What are some typical applications of the HMC550A?
Typical applications include RFID, ETC, ISM, WLAN, WiMAX, WiBro, automotive telematics, and test equipment.
- What is the Vdd range for the HMC550A?
The Vdd range is from 1.2V to 5V.
- Is the HMC550A RoHS compliant?
Yes, the HMC550E version is RoHS compliant.
