Overview
The HMC253AQS24 and HMC253AQS24E are low-cost, non-reflective Single-Pole, Eight-Throw (SP8T) switches manufactured by Analog Devices Inc. These switches are packaged in a 24-lead QSOP and feature wideband operation from DC to 2.5 GHz. They are designed to replace multiple configurations of SP4T and SPDT MMIC switches, offering a single positive supply voltage and true TTL/CMOS compatibility. The integrated 3:8 TTL decoder requires only three control lines and a positive bias to select each path, making them highly efficient and versatile for various RF applications.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Insertion Loss | DC - 1.0 GHz | 1.0 | 1.1 | 1.4 | dB |
| Insertion Loss | DC - 2.0 GHz | 1.5 | 1.7 | 2.1 | dB |
| Insertion Loss | DC - 2.5 GHz | 1.7 | 2.1 | 2.4 | dB |
| Isolation | DC - 1.0 GHz | 35 | 30 | 28 | dB |
| Isolation | DC - 2.0 GHz | 40 | 35 | 33 | dB |
| Isolation | DC - 2.5 GHz | 40 | 35 | 33 | dB |
| Return Loss (On State) | DC - 1.0 GHz | 21 | 20 | 16 | dB |
| Return Loss (On State) | DC - 2.0 GHz | 18 | 12 | 8 | dB |
| Return Loss (On State) | DC - 2.5 GHz | 18 | 12 | 8 | dB |
| Input Power for 1 dB Compression | 0.3 - 2.5 GHz | 20 | 23 | dBm | |
| Operating Temperature | -40 | 85 | °C | ||
| Storage Temperature | -65 | 150 | °C | ||
| Vdd Range | +5.0 Vdc ± 10% | Vdc | |||
| Idd (Typ.) | 6.0 | mA | |||
| Idd (Max.) | 9.0 | mA |
Key Features
- Wideband Operation: From DC to 2.5 GHz, making them suitable for a variety of RF applications.
- Low Insertion Loss: Typical insertion loss of 1.1 dB at 2 GHz, ensuring minimal signal attenuation.
- Single Positive Supply: Operates with a single positive supply voltage of +5V.
- Integrated 3:8 TTL Decoder: Requires only three control lines and a positive bias to select each path.
- TTL/CMOS Compatibility: True TTL/CMOS compatibility for easy integration into digital systems.
- Non-Reflective Design: Minimizes reflections and ensures reliable operation.
- 24-Lead QSOP Package: Compact packaging suitable for space-constrained applications.
Applications
- CATV/DBS: Cable television and direct broadcast satellite systems.
- CDMA: Code Division Multiple Access wireless communication systems.
- Cellular/PCS: Cellular and personal communication services.
Q & A
- What is the frequency range of the HMC253AQS24 switch?
The HMC253AQS24 operates from DC to 2.5 GHz.
- What is the typical insertion loss at 2 GHz?
The typical insertion loss at 2 GHz is 1.1 dB.
- What is the supply voltage for the HMC253AQS24?
The supply voltage is +5V.
- How many control lines are required to select each path?
Only three control lines are required due to the integrated 3:8 TTL decoder.
- What is the operating temperature range of the HMC253AQS24?
The operating temperature range is -40°C to +85°C.
- What is the storage temperature range of the HMC253AQS24?
The storage temperature range is -65°C to +150°C.
- What are the typical applications of the HMC253AQS24?
Typical applications include CATV/DBS, CDMA, and Cellular/PCS systems.
- What is the package type of the HMC253AQS24?
The package type is a 24-lead QSOP.
- Is the HMC253AQS24 compatible with TTL/CMOS systems?
Yes, it is compatible with TTL/CMOS systems.
- What is the maximum input power for 1 dB compression?
The maximum input power for 1 dB compression is 23 dBm.
