1. Products
  2. RF and Microwave
  3. RF Power Detectors
  4. Logarithmic Detectors
  5. LT5537


Features and Benefits

  • Low Frequency to 1000MHz Operation
  • 83dB Dynamic Range with ±1dB Nonlinearity at 200MHz
  • Sensitivity –76dBm or Better at 200MHz
  • Log-Linear Transfer Slope of 20mV/dB
  • Supply Voltage Range: 2.7V to 5.25V
  • Supply Current: 13.5mA at 3V
  • Tiny 8-Lead (3mm × 2mm) DFN Package

Product Details

The LT5537 is a wide dynamic range RF/IF detector, operational from below 10MHz to 1000MHz. The lower limit of the operating frequency range can be extended to near DC by the use of an external capacitor. The input dynamic range at 200MHz with ±3dB nonlinearity is 90dB (from –76dBm to 14dBm, single-ended 50Ω input). The detector output voltage slope is nominally 20mV/dB, and the typical temperature coefficient is 0.01dB/°C at 200MHz.


  • Linear-to-Log Signal Level Conversion
  • Received Signal Strength Indication (RSSI)
  • RF Power Control
  • RF/IF Power Detection
  • Receiver RF/IF Gain Control
  • Envelope Detection
  • ASK Receiver

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

LT5537 Companion Parts

Recommended ADCs

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT5537EDDB#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
LT5537EDDB#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
Wafer Fabrication Data R409 Reliability Data

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.