Features and Benefits

  • High Input IP3: +32 dBm
  • Low Conversion Loss: 7 dB
  • 24 Lead 4x4mm SMT Package: 16mm2
  • Low LO Drive: 0 dBm
  • Upconversion & Downconversion Applications

Product Details

The HMC684LP4(E) is a high dynamic range passive MMIC mixer with integrated LO amplifier in a 4x4 SMT QFN package covering 0.7 to 1.0 GHz. Excellent input IP3 performance of +30 dBm for down conversion is provided for 3G & 4G GSM/CDMA applications at an LO drive of 0 dBm. With an input 1 dB compression of +25 dBm, the RF port will accept a wide range of input signal levels. Conversion loss is 7 dB typical. The DC to 450 MHz IF frequency response will satisfy GSM/CDMA transmit or receive frequency plans. The HMC684LP4(E) is pin for pin compatible with the HMC685LP4(E) which is a 1.7 - 2.2 GHz mixer with LO amplifier.


  • Cellular/3G & LTE/WiMAX/4G
  • Basestations & Repeaters
  • Transmitters and Receivers

Product Lifecycle icon-not-recommended Last Time Buy

All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

Evaluation Kits (1)

Tools & Simulations

Design Tools


ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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.

PCN-PDN Information

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.