Features and Benefits

  • High-performance active mixer
  • Broadband operation to 2.5 GHz
  • Conversion gain: 7 dB
  • Input IP3: 16.5 dBm
  • LO drive: –10 dBm
  • Noise figure: 14 dB
  • Input P1dB: 2.8 dBm
  • See datasheet for additional features

Product Details

The AD8343 is a high-performance broadband active mixer. With wide bandwidth on all ports and very low intermodulation distortion, the AD8343 is well suited for demanding transmit applications or receive channel applications.

The AD8343 provides a typical conversion gain of 7 dB. The integrated LO driver supports a 50 Ω differential input impedance with low LO drive level, helping to minimize external component count.

The open-emitter differential inputs can be interfaced directly to a differential filter or driven through a balun (transformer) to provide a balanced drive from a single-ended source.

The open-collector differential outputs can be used to drive a differential IF signal interface or convert to a single-ended signal through the use of a matching network or transformer. When centered on the VPOS supply voltage, the outputs swing ±1 V.

The LO driver circuitry typically consumes 15 mA of current. Two external resistors are used to set the mixer core current for required performance, resulting in a total current of 20 mA to 60 mA. This corresponds to power consumption of 100 mW to 300 mW with a single 5 V supply.

The AD8343 is fabricated on Analog Devices, Inc.’s high-performance 25 GHz silicon bipolar IC process. The AD8343 is available in a 14-lead TSSOP package. It operates over a −40°C to +85°C temperature range. A device-populated evaluation board is available.


  • Cellular base stations
  • Wireless LAN
  • Satellite converters
  • SONET/SDH radio
  • Radio links
  • RF instrumentation

Product Lifecycle icon-recommended Production

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.

Evaluation Kits (1)

Tools & Simulations


AD8343 S-Parameters

The S2P file provides differential impedance measurements. The S2P port assignments are as follows: Port 1: differential input. Port 2: differential output. In most cases the 2-port data will be all you'll need to develop matching networks for the AD8343. LO port can be considered as a 50 ohm input.

Design Tools


ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.


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.

Product Recommendations

AD8343 Companion Parts

Recommended RF/IF Differential Amplifiers

  • For ultralow distortion and adjustable gain with external resistor: AD8352.
  • For ultralow distortion, pin strappable gain adjust: ADL5561.
  • For adjustable gain with external resistor: AD8351.
  • For differential input/output digital gain amplifier: AD8370, AD8375.

Recommended PLL's

  • For higher performance, higher frequency and faster locktimes: ADF4106, ADF4153A.
  • For high performance with integrated VCO: ADF4351.

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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