The HMC474SC70E is a GaAs MMIC (Monolithic Microwave Integrated Circuit) Voltage Variable Attenuator (VVA) manufactured by Hittite Microwave Corporation (now Analog Devices). It operates in the frequency range of 0.7 GHz to 4.0 GHz and provides a wide attenuation range with excellent linearity. This VVA is commonly used in applications such as automatic gain control (AGC) circuits, level control, and signal fading simulation in communication systems.

Applications:

• Automatic Gain Control (AGC) circuits
• Level control in RF and microwave systems
• Signal fading simulation
• Wireless communication infrastructure
• Test and measurement equipment

Features:

• Frequency Range: 0.7 GHz to 4.0 GHz
• Attenuation Range: Up to 35 dB
• Low Insertion Loss: Typically 1.5 dB
• High Linearity: IIP3 of +40 dBm
• Single Positive Control Voltage
• SC70 Package

Benefits:

• Precise and adjustable signal attenuation
• Wide operating frequency range covers many applications
• Minimal signal distortion due to high linearity
• Compact size for space-constrained designs
• Simplified control circuitry with single positive voltage

Technical Specifications:

The HMC474SC70E operates in the 0.7 GHz to 4.0 GHz frequency range. The typical insertion loss is 1.5 dB. It provides an attenuation range of up to 35 dB, controlled by a single positive voltage. The input IP3 (IIP3) is typically +40 dBm, indicating high linearity. The control voltage range is typically 0V to +5V. It is packaged in a small SC70 surface mount package. The operating temperature range is typically -40°C to +85°C.