ADL5906:  10 MHz TO 10 GHz 67 dB TruPwr™ Detector

Product Details

Product Status:Recommended for New Designs

The ADL5906 is a true rms responding power detector that has a 67 dB measurement range when driven with a single-ended 50 Ω source. The easy to use input makes the ADL5906 frequency versatile by eliminating the need for a balun or any other form of external input tuning for operation up to 10 GHz.

The ADL5906 provides a solution in a variety of high frequency systems requiring an accurate rms measurement of signal power. The ADL5906 can operate from 10 MHz to 10 GHz and can accept inputs from −65 dBm to +8 dBm with varying crest factors and bandwidths, such as GSM-EDGE, CDMA, W-CDMA, TD-SCDMA, WiMAX, and OFDM-based LTE carriers. In addition, its temperature stability over the broad temperature range of −55°C to +125°C makes it ideally suited for a wide array of communications, military, industrial, and instrumentation applications.

Used as a power measurement device, VRMS is connected to VSET. The output is then proportional to the logarithm of the rms value of the input. In other words, the reading is presented directly in decibels and is scaled 1.1 V per decade, or 55 mV/dB; other slopes are easily arranged. In controller mode, the voltage applied to VSET determines the power level required at the input to null the deviation from the setpoint. The output buffer can provide high load currents.

Requiring only a single supply of 5 V and a few capacitors, it is easy to use and capable of being driven single-ended or with a balun for differential input drive. The ADL5906 has a low 250 µA sleep current when powered down by a logic high applied to the PWDN pin. It powers up within approximately 1.4 µs to its nominal operating current of 68 mA at 25°C.

The ADL5906 is supplied in a 4 mm × 4 mm, 16-lead LFCSP and it is pin compatible with the ADL5902 and the AD8363 TruPwr™ rms detectors. This feature allows the designer to create one circuit layout for projects requiring different dynamic ranges. A fully populated RoHS-compliant evaluation board is available.


  • Power amplifier linearization/control loops
  • Transmitter signal strength indication (TSSI)
  • RF instrumentation


  • Accurate rms-to-dc conversion from 10 MHz to 10 GHz
  • Single-ended ±1 dB dynamic range: 67 dB at 2.14 GHz
        No balun or external input matching required
  • Response independent of waveform types, such as GSM/CDMA/W-CDMA/TD-SCDMA/WiMAX/LTE
  • Logarithmic slope: 55 mV/dB
  • Temperature stability: <±1 dB from −40°C to +125°C
  • Operating temperature: −55°C to +125°C
  • Supply voltage: 4.75 V to 5.25 V
  • Sleep current: 250 µA
  • Pin-compatible with ADL5902 and AD8363

Functional Block Diagram for ADL5906


Title Content Type File Type
ADL5906: 10 MHz to 10 GHz 67 dB TruPwr Detector Data Sheet (Rev A, 10/2013) (pdf, 1804 kB) Data Sheets PDF
AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters  (pdf, 152 kB) Application Notes PDF
CN-0178: Software-Calibrated, 50 MHz to 9 GHz, RF Power Measurement System  (pdf, 179 kB) Circuit Note PDF
Analog Devices’ RMS Power Detector Offers Unparalleled Frequency Performance and Flexibility (25 Mar 2013) Press Releases HTML
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
Glossary of EE Terms Glossary HTML

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

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.

SampleSample & Buy

Price, packaging, availability

ADL5906 Model Options
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.

ADL5906 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADL5906-EVALZ Status: Production Evaluation Board $100.00 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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