The HMC474MP86 is a GaAs MMIC Voltage Variable Attenuator (VVA) chip from Hittite Microwave Corporation (now Analog Devices). This device offers excellent attenuation accuracy and linearity over a broad frequency range. The HMC474MP86 is ideal for automatic gain control (AGC) circuits, amplitude modulation, and level setting applications.

Applications

• Automatic Gain Control (AGC) Circuits: Maintain a constant output signal level despite variations in input signal strength.
• Amplitude Modulation: Modulate the amplitude of a carrier signal with an information signal.
• Level Setting: Adjust signal levels in various RF and microwave systems.
• Test and Measurement Equipment: Used in signal generators and analyzers.
• Radar Systems: Used in receiver circuits to control signal levels.

Features

• Frequency Range: DC to 8 GHz.
• Attenuation Range: Up to 30 dB.
• Low Insertion Loss: Typically 1.5 dB.
• High Input IP3: +35 dBm.
• Single Positive Control Voltage: 0 to +5V.
• GaAs MMIC Design: Provides high performance and reliability.
• 8-Lead Ceramic Package: MP86 package.

Benefits

• Precise Attenuation Control: Allows for accurate signal level adjustments.
• Wide Frequency Range: Suitable for a broad range of applications.
• Low Distortion: High IP3 ensures minimal signal distortion.
• Simplified Control: Single positive control voltage simplifies circuit design.
• Compact Size: Small package footprint saves board space.

Additional Details

The HMC474MP86 utilizes a GaAs MMIC design, which provides high performance and reliability. It is controlled by a single positive voltage ranging from 0 to +5V, which adjusts the attenuation level. The device features low insertion loss and high input IP3, ensuring minimal signal degradation and distortion. The small size of the ceramic package allows for compact circuit designs. This attenuator is a versatile component for various RF and microwave applications requiring precise signal level control.