ADL5502:  450 MHz to 6000 MHz Crest Factor Detector

The ADL5502 is a mean-responding (true rms) power detector in combination with an envelope detector to accurately determine the crest factor of a modulated signal. It can be used in high frequency ...More

ADL5502:  450 MHz to 6000 MHz Crest Factor Detector

Product Description

The ADL5502 is a mean-responding (true rms) power detector in combination with an envelope detector to accurately determine the crest factor of a modulated signal. It can be used in high frequency receiver and transmitter signal chains from 450 MHz to 6 GHz with envelope bandwidths over 10 MHz. Requiring only a single supply between 2.5 V and 3.3 V, the detector draws less than 3 mA. The input is internally ac-coupled and has a nominal input impedance of 500 Ω.

The rms output is a linear-responding dc voltage with a conversion gain of 1.8 V/V rms at 900 MHz. The peak envelope output with a conversion gain of 1.2 V/V is toggled for peak hold with less than 1% output voltage droop in over 1 ms.

The ADL5502 is a highly accurate, easy to use means of determining the rms and peak to the average value of complex waveforms. It can be used for crest factor measurements of both simple and complex waveforms but is particularly useful for measuring high crest factor (high peak-to-rms ratio) signals, such as W-CDMA, CDMA2000, and QPSK-/QAM-based OFDM waveforms. The peak hold function allows the capture of short peaks in the envelope with lower sampling rate ADC’s.

The crest factor detector operates from −40°C to +85°C and is available in an 8-ball, 1.5 mm × 1.5 mm wafer-level chip scale package. It is fabricated on a high fT silicon BiCMOS process.

Applications

  • Power and envelope measurement of W-CDMA, CDMA2000, and QPSK-/QAM-based OFDM, and other
    complex modulation waveforms
  • RF transmitter or receiver power and envelope measurement

    • Data Sheet, Rev. 0, 11/2008

    Features

    • True rms response detector
    • Envelope peak hold output
    • Excellent temperature stability
    • ±0.25 dB rms detection accuracy vs. temperature
    • ±0.25 dB envelope detection accuracy vs. temperature; over the top 25 dB of the input range
    • Over 35 dB input power dynamic range, inclusive of crest factor
    • RF bandwidths from 450 MHz to 6 GHz
    • Envelope bandwidths of 10 MHz
    • 500 Ω input impedance
    • Single-supply operation: 2.5 V to 3.3 V
    • Low power: 3 mA at 3 V supply
    • RoHS compliant part

    Specifications

    Voltage Supply (V) 2.7 to 5.5
    RF Freq (MHz) 3800MHz
    Dynamic Range (dB) 30dB
    Temp Stability (dB) ±0.25dB
    Output Response Linear in Voltage
    Response Time (ns) 15000ns
    Package WLCSP

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    Part# Voltage Supply (V) Supply Current RF Freq (MHz) Dynamic Range (dB) Temp Stability (dB) Output Response Response Time (ns) Package Price* (1000-4999)
    AD8361 2.7 to 5.5 1.1 2500 30 ±0.25 Linear in Voltage 5000 6-Lead SOT-23, 8-Lead uSOIC $3.80
    AD8362 4.5 to 5.5 20 3800 60 ±1 Linear in dB 45 16-Lead SOP $6.33
    AD8363 4.5 to 5.5 60 6000 50 ±0.5 Linear in dB 3000 4 x 4 mm CSP $5.31
    AD8364 4.5 to 5.5 70 2700 60 ±0.5 Linear in dB 45 5 x 5 mm CSP $7.94
    ADL5500 2.7 to 5.5 1.1 6000 30 ±0.25 Linear in Voltage 10000 WLCSP $2.78
    ADL5501 2.7 to 5.5 1.1 6000 30 ±0.25 Linear in Voltage 6000 6-Lead SC-70 $2.42
    ADL5502 2.7 to 5.5 - 3800 30 ±0.25 Linear in Voltage 15000 WLCSP $5.97

    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

    Pricing, Packaging & Availability

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    • Automotive: -40 to +125 degrees Celsius
    Price
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    RoHS Compliant
    Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

    *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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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