Features and Benefits

  • Wide Dynamic Range: Up to 70 dB
  • High Accuracy: ±1 dB with 51 dB Range Up to 8 GHz
  • Supply Voltage: +5V
  • Excellent Stability over Temperature
  • Buffered Temperature Sensor Output
  • Die Size: 1.75 x 1.41 x 0.25 mm

Product Details

The HMC611 SiGe BiCMOS Logarithmic Detector/Controller generates a voltage that is proportional to the log of the RF power envelop presented to its input. The HMC611 employs a successive compression topology which delivers extremely high dynamic range and conversion accuracy over a wide input frequency range. As the input power is increased, successive amplifiers move into saturation one by one creating an accurate approximation of the logarithm function. The output of a series of square law detectors is summed, converted into voltage domain and buffered to drive the LOGOUT output. For detection mode, the LOGOUT pin is shorted to the VSET input, and will provide a nominal logarithmic slope of -25 mV/dB and an intercept of 18 dBm (22 dBm for ƒ ≥ 5.8 GHz). The HMC611 can also be used in the controller mode where an external voltage is applied to the VSET pin, to create an AGC or APC feedback loop.


  • Cellular/PCS/3G
  • WiMAX, WiBro, WLAN, Fixed Wireless & Radar
  • Power Monitoring & Control Circuitry
  • Receiver Signal Strength Indication (RSSI)
  • Automatic Gain & Power Control

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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