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ADL5566:  4.5 GHz Ultrahigh Dynamic Range, Dual Differential Amplifier

Product Details

Product Status:Recommended for New Designs

The ADL5566 is a high performance, dual differential amplifier optimized for IF and dc applications. The amplifier offers low noise of 1.3 nV/√Hz and excellent distortion performance over a wide frequency range, making it an ideal driver for high speed 16-bit analog-to-digital converters (ADCs). The ADL5566 is ideally suited for use in high performance, zero IF/complex IF receiver designs. In addition, this device has excellent low distortion for single-ended input drive applications.

The ADL5566 provides a gain of 16 dB. For the single-ended input configuration, the gain is reduced to 14 dB. Using two external series resistors for each amplifier expands the gain flexibility of the amplifier and allows for any gain selection from 0 dB to 16 dB for a differential input and 0 dB to 14 dB for a single-ended input. In addition, this device maintains low distortion down to output (VOCM) levels of 1.2 V providing an added capability for driving CMOS ADCs at ac levels up to 2 V p-p.

The quiescent current of the ADL5566, using a 3.3 V supply, is typically 70 mA per amplifier. When disabled, it consumes less than 3.5 mA per amplifier and has −25 dB of input-to-output isolation at 100 MHz.

The device is optimized for wideband, low distortion, and noise performance, giving it unprecedented performance for overall spurious-free dynamic range (SFDR). These attributes, together with its adjustable gain capability, make this device the amplifier of choice for driving a wide variety of ADCs, mixers, pin diode attenuators, SAW filters, and multi-element discrete devices.

Fabricated on an Analog Devices, Inc., high speed SiGe process, the ADL5566 is supplied in a compact 4 mm × 4 mm, 24-lead LFCSP package and operates over the −40°C to +85°C temperature range.


  • −3 dB bandwidth of 4.5 GHz
      (AV = 16 dB)
  • Fixed 16 dB gain
  • Channel-to-channel gain error: 0.1 dB at 100 MHz
  • Channel-to-channel phase error: 0.06° at 100 MHz
  • Differential or single-ended input to differential output
  • I/O dc-coupled or ac-coupled
  • Low noise input stage: 1.3 nV/√Hz RTI at AV = 16 dB
  • Low broadband distortion
      (AV = 16 dB), supply = 5 V
    10 MHz: −103 dBc (HD2), −107 dBc (HD3)
    100 MHz: −95 dBc (HD2), −100 dBc (HD3)
    200 MHz: −94.5 dBc (HD2), −87 dBc (HD3)
    500 MHz: −83 dBc (HD2), −64 dBc (HD3)
  • IMD3 of −95 dBc at 200 MHz center
  • See data sheet for additional features

Functional Block Diagram for ADL5566

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADI’s ADIsimRF design tool provides calculations for the most important parameters within the RF signal chain, including cascaded gain, noise figure, IP3, P1dB, and total power consumption.
ADIsim Design/Simulation Tools HTML
ADL5566 S-Parameters  (ZIP, 320 kB) S-Parameters ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

Price Table Help

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.

AD-FMCOMMS6-EBZ Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
AD-FMCOMMS6-EBZ Status: Production Evaluation Board $650.00 Yes -
ADL5566 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADL5566-EVALZ Status: Production Evaluation Board $150.00 Yes -

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.

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