Overview
The HMC650 is a fixed, 12 mil through-line passive attenuator chip produced by Analog Devices Inc. This component is part of a family of wideband fixed-value 50 Ohm matched attenuators, which include the HMC650 through HMC658 models. The HMC650 offers a fixed attenuation level and is designed for applications requiring extremely flat attenuation and excellent VSWR (Voltage Standing Wave Ratio) over a wide frequency range.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Attenuation Level | 0, 2, 3, 4, 6, 10, 15, 20 dB | dB |
| Frequency Range | DC - 50 GHz | GHz |
| RF Input Power (CW) | +25 dBm | dBm |
| DC Voltage (Terminated) | 5.6 V (max) | V |
| DC Voltage (Open) | 5.6 V (max) | V |
| Storage Temperature | -65 to +150 °C | °C |
| Operating Temperature | -55 to +85 °C | °C |
| Die Size | 0.42 x 0.45 x 0.1 mm (HMC650, HMC652, HMC653, HMC654, HMC655, HMC656, HMC657) | mm |
| Die Size | 0.57 x 0.45 x 0.1 mm (HMC651, HMC658) | mm |
Key Features
- Wideband operation from DC to 50 GHz
- Fixed attenuation levels of 0, 2, 3, 4, 6, 10, 15, and 20 dB
- Low inductance on-chip vias, requiring no additional ground connections
- Backside metallized with gold, suitable for eutectic or epoxy die attach
- Excellent VSWR vs. frequency performance
- Ideal for microstrip, hybrid, and multi-chip module applications
Applications
- Fiber Optics
- Microwave Radio
- Military & Space Hybrids
- Test & Measurement
- Scientific Instruments
- RF / Microwave Circuit Prototyping
Q & A
- What is the frequency range of the HMC650 attenuator?
The HMC650 operates from DC to 50 GHz.
- What are the available attenuation levels for the HMC650?
The HMC650 is available with fixed attenuation levels of 0, 2, 3, 4, 6, 10, 15, and 20 dB.
- What is the maximum RF input power for the HMC650?
The maximum RF input power is +25 dBm.
- What are the operating temperature ranges for the HMC650?
The operating temperature range is -55 to +85 °C.
- How is the die of the HMC650 metallized?
The die is backside metallized with gold.
- What types of applications is the HMC650 suitable for?
The HMC650 is suitable for fiber optics, microwave radio, military & space hybrids, test & measurement, scientific instruments, and RF / microwave circuit prototyping.
- What is the die size of the HMC650?
The die size for the HMC650 is 0.42 x 0.45 x 0.1 mm.
- Does the HMC650 require additional ground connections?
No, the HMC650 does not require additional ground connections due to its low inductance on-chip vias.
- How can the HMC650 be attached?
The HMC650 is suitable for eutectic or epoxy die attach.
- What is the storage temperature range for the HMC650?
The storage temperature range is -65 to +150 °C.
