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Product Details

Monolithic Silicon Bipolar, Measurement of Amplitude / Phase

The AD8302 is a fully integrated RF IC for measuring amplitude and the phase between two independent input signals. The device can be used from low frequencies up to 2.7 GHz.

The AD8302 integrates two closely matched wideband logarithmic amplifiers, a wideband linear multiplier / phase detector, precision 1.8 V reference, and analog output scaling circuits.

The applied input signal can range from -60 dBm to 0 dBm (ref 50 Ω), which corresponds to a 60 dB dynamic range.

The AD8302 output provides an accurate amplitude measurement over ±30 dB range scaled to 30 mV/dB and the phase measurement over a 0 to 180° range scaled to 10 mV/°.

The device has been tested for use over the common Cellular bands (900 MHz, 1.8 GHz, 2.2 GHz) and specified for operation out to 2.7 GHz.

The AD8302 is supplied in 14-lead Thin Shrunk Small Outline (TSSOP) package, and fully specified over -40 to 85°C temperature range.


  • Measures Independently both Gain/Loss and Phase
  • Operation from Low frequencies up to 2.7GHz
  • Dual Matched Logarithmic Amplifiers with Phase Detector
  • Gain Measurement range -30 to +30dB
  • Phase Measurement range from 0 to
    180 degree
  • Integrated Voltage Reference and Output Voltage Circuits
  • Single 2.7-5.5 V Supply

Functional Block Diagram for AD8302


Title Content Type File Type
AD8302: LF-2.7 GHz RF/IF Gain and Phase Detector Data Sheet  (Rev A, 07/2002) (pdf, 563 kB) Data Sheets PDF
AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters  (pdf, 152 kB) Application Notes PDF
AN-691: Operation of RF Detector Products at Low Frequency  (pdf, 778 kB) Application Notes PDF
AN-653: Improving Temperature, Stability, and Linearity of High Dynamic Range RMS RF Power Detectors  (pdf, 415 kB) Application Notes PDF
Measurement and Control of RF Power
by Eamon Nash, Analog Devices, Inc.
Technical Articles HTML
Detecting Fast RF Bursts using Log Amps  (pdf, 174 kB)
by Yuping Toh, Analog Devices, Inc.
Technical Articles PDF
Make Precise Base-Station Power Measurements  (pdf, 1764 kB)
(Microwaves and RF, November 2002)
Technical Articles PDF
Log Amps and Directional Couplers Enable VSWR Detection  (pdf, 2223 kB)
by Anil Rachakonda and Larry Hawkins, Analog Devices, Inc. (RF Design, 1/1/2007)
Technical Articles PDF
Measuring VSWR and Gain in Wireless Systems  (pdf)
By Eamon Nash, Analog Devices Inc., (Microwave Journal, Nov 2005)
Technical Articles PDF
Measuring the RF Power in CDMA2000 and W-CDMA High Power Amplifiers (HPAs)  (pdf, 609 kB)
By Larry Hawkins, Analog Devices, Inc. (MPD Digest, Nov. 2005)
Technical Articles PDF
Design a Logamp RF Pulse Detector  (pdf, 338 kB)
by Eamon Nash
(Microwaves & RF, January 1, 2000)
Technical Articles PDF
Detecting Fast RF Bursts Using Log Amps
(Analog Dialogue, Vol. 36, No. 5, September-October, 2002)
Analog Dialogue HTML
Accurate Gain/Phase Measurement at Radio Frequencies up to 2.5 GHz
(Analog Dialogue, Vol. 35, No. 5, October, 2001)
Analog Dialogue HTML
Ask The Applications Engineer - 28
Logarithmic Amplifiers-Explained

(Analog Dialogue, Vol. 33, No. 3, March, 1999)
Analog Dialogue HTML
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
Industrial Applications Overview HTML
We measure portable performance in µA and MHz. In handheld designs, analog is everywhere. Overview HTML
ICs for Enhanced Handset User Experience Overview HTML
RAQs index Rarely Asked Questions HTML
What is an RF Detector, and how is it used? FAQs/RAQs HTML
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
ADIsimPLL™- Version 3.43
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.
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

AD8302 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD8302ARU Status: Production 14 ld TSSOP 14 Ind Tube, 96 $17.54 $14.03 N  Material Info PCN Purchase
AD8302ARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 $15.18 $12.14 Y  Material Info PCN Purchase
AD8302ARUZ-REEL Status: Production 14 ld TSSOP 14 Ind Reel, 2500 - $12.14 Y  Material Info PCN Purchase
AD8302ARUZ-RL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - $12.14 Y  Material Info PCN Purchase
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.

AD8302 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
AD8302-EVALZ Status: Production Evaluation Board $225.00 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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