AD8313 0.1 GHz TO 2.5 GHz, 70 dB Logarithmic Detector / Controller

The AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is −40°C to +85°C.

The AD8313 is a complete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its input to an equivalent decibel-scaled value at its dc output. The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz. Application is straightforward, requiring only a single supply of 2.7 V to 5.5 V and the addition of a suitable input and supply decoupling. Operating on a 3 V supply, its 13.7 mA consumption (for TA = 25°C) is only 41 mW. A power-down feature is provided; the input is taken high to initiate a low current (20 µA) sleep mode, with a threshold at half the supply voltage

The AD8313 is fabricated on Analog Devices, Inc., advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package. The operating temperature range is −40°C to +85°C.

Features and Benefits
  • Wide bandwidth:
    0.1 GHz to 2.5 GHz min
  • High dynamic range:
    70 dB to ±3.0 dB
  • High accuracy: ±1.0 dB over 65 dB range (@ 1.9 GHz)
  • Fast response:
    40 ns full-scale typical
  • Controller mode with error output
  • Scaling stable over supply and temperature
  • Wide supply range:
    2.7 V to 5.5 V
  • Low power:
    40 mW at 3 V
  • Power-down feature:
    60 mW at 3 V
    • RF & Microwave
    Data Sheets
    Documentnote
    AD8313: 0.1 GHz-2.5 GHz, 70 dB Logarithmic Detector/Controller Data Sheet (Rev. E)PDF 448.88 K
    Application Notes
    Documentnote
    AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters (Rev. 0)PDF 152 kB
    Frequently Asked Questions
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8313ARM Production8 ld MSOPOTH 50-40 to 85C14.329.23N
    AD8313ARM-REEL Production8 ld MSOPREEL 3000-40 to 85C09.23N
    AD8313ARM-REEL7 Production8 ld MSOPREEL 1000-40 to 85C09.23N
    AD8313ARMZ Production8 ld MSOPOTH 50-40 to 85C12.47.99Y
    AD8313ARMZ-REEL Production8 ld MSOPREEL 3000-40 to 85C07.99Y
    AD8313ARMZ-REEL7 Production8 ld MSOPREEL 1000-40 to 85C07.99Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD8313-EVALZEvaluation Board100.19Y
    Reference Materials
    AD8313: 0.1 GHz-2.5 GHz, 70 dB Logarithmic Detector/Controller Data Sheet (Rev. E) ad8313
    AN-1040: RF Power Calibration Improves Performance of Wireless Transmitters (Rev. 0) ad8307
    AN-1040: RF功率校准提高无线发射机的性能 (Rev. 0) ad8307
    Design and Operation of Automatic Gain Control Loops for Receivers in Modern... ad8369
    RF Source Booklet adf9010
    Measurement and Control of RF Power, Part I ad640
    Measurement and Control of RF Power, Part II ad640
    Measurement and Control of RF Power, Part III ad640
    Log Amps and Directional Couplers Enable VSWR Detection ad640
    Measuring VSWR and Gain in Wireless Systems ad640
    Measuring the RF Power in CDMA2000 and W-CDMA High Power Amplifiers (HPAs) ad640
    Detecting Fast RF Bursts using Log Amps ad640
    Make Precise Base-Station Power Measurements ad640
    Design a Logamp RF Pulse Detector ad640
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