Overview
The HMC346AMS8GETR is a GaAs MMIC (Monolithic Microwave Integrated Circuit) surface-mount voltage-variable attenuator (VVA) produced by Analog Devices Inc. This absorptive VVA operates over a wide frequency range from DC to 8 GHz, making it suitable for various high-frequency applications. The device is packaged in an 8-lead surface-mount package and features an on-chip reference attenuator that allows for simple single voltage attenuation control using an external op-amp. The control voltage ranges from 0 to -5V, enabling the control of RF signal levels over a 30 dB amplitude range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frequency Range | DC - 8 GHz | |
| Attenuation Range | 30 dB | |
| Control Voltage Range | 0 to -5 V | |
| RF Input Power | +18 dBm | |
| Insertion Loss | 2.1 dB | |
| Operating Temperature | -40 to +85 °C | |
| Storage Temperature | -65 to +150 °C | |
| Junction Temperature | +175 °C | |
| Package Type | 8-Lead Mini Small Outline Package with Exposed Pad (MINI_SO_EP) | |
| Moisture Sensitivity | Yes |
Key Features
- Wide bandwidth operation from DC to 8 GHz.
- Low phase shift versus attenuation, ensuring minimal distortion in the signal.
- On-chip reference attenuator for simple single voltage attenuation control using an external op-amp.
- Control voltage range of 0 to -5V, allowing for a 30 dB amplitude range control.
- RoHS-compliant and low stress injection molded plastic package.
- High reliability and stability in various environmental conditions.
Applications
- Point-to-Point Radio systems, where precise control over RF signal levels is crucial.
- VSAT (Very Small Aperture Terminal) Radio systems, requiring stable and wideband attenuation.
- AGC (Automatic Gain Control) circuits, where dynamic adjustment of signal levels is necessary.
- Temperature compensation of multiple gain stages in microwave systems).
Q & A
- What is the frequency range of the HMC346AMS8GETR?
The HMC346AMS8GETR operates from DC to 8 GHz).
- What is the attenuation range of this device?
The attenuation range is 30 dB).
- How is the attenuation controlled in the HMC346AMS8GETR?
The attenuation is controlled using an external op-amp with a control voltage range of 0 to -5V).
- What are the typical applications of the HMC346AMS8GETR?
Typical applications include Point-to-Point Radio, VSAT Radio, AGC circuits, and temperature compensation in microwave systems).
- What is the package type of the HMC346AMS8GETR?
The device is packaged in an 8-Lead Mini Small Outline Package with Exposed Pad (MINI_SO_EP)).
- Is the HMC346AMS8GETR RoHS-compliant?
Yes, the HMC346AMS8GETR is RoHS-compliant).
- What is the maximum RF input power for the HMC346AMS8GETR?
The maximum RF input power is +18 dBm).
- What are the operating and storage temperature ranges for the HMC346AMS8GETR?
The operating temperature range is -40 to +85 °C, and the storage temperature range is -65 to +150 °C).
- Is the HMC346AMS8GETR sensitive to electrostatic discharge (ESD)?
Yes, the device is electrostatic sensitive and requires careful handling).
- What is the insertion loss of the HMC346AMS8GETR?
The insertion loss is 2.1 dB).
