LTC5532 - Precision 300MHz to 7GHz RF Detector with Gain and Offset Adjustment


  • Temperature Compensated Internal Schottky Diode RF Detector
  • Wide Input Frequency Range: 300MHz to 7GHz
  • Wide Input Power Range: –32dBm to 10dBm
  • Buffered Detector Output with External Gain Control
  • Precision VOUT Offset Control
  • Low Starting Voltage: 120mV ±35mV for Gain = 2x
  • Wide VCC Range of 2.7V to 6V
  • Low Operating Current: 500µA
  • Available in a Low Profile (1mm) SOT-23 Package and Tiny 6-Lead (2mm x 2mm) DFN Package

Typical Application

LTC5532 Typical Application
LTC5532 Typical Application


The LTC5532 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small ThinSOT or (2mm x 2mm) DFN package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3x NiMH.

The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUT pin.

The LTC5532 output buffer gain is set via external resistors. The initial starting voltage of 120mV ±35mV can be precisely adjusted using the VOS pin.

The LTC5532 operates with RF input power levels from –32dBm to 10dBm


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC5532EDC#PBF 2x2 DFN-6 DC6 E 05-08-1703 Yes
LTC5532EDC#TRMPBF 2x2 DFN-6 DC6 E 05-08-1703 Yes
LTC5532EDC#TRPBF 2x2 DFN-6 DC6 E 05-08-1703 Yes
LTC5532ES6#PBF SOT-23 S6 E 05-08-1636 Yes
LTC5532ES6#TRMPBF SOT-23 S6 E 05-08-1636 Yes
LTC5532ES6#TRPBF SOT-23 S6 E 05-08-1636 Yes

LTC5532 Package Drawing
LTC5532 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC5532EDC#PBF 2x2 DFN-6 E $2.47 Yes
LTC5532EDC#TRMPBF 2x2 DFN-6 E $2.47 $1.78 Yes
LTC5532EDC#TRPBF 2x2 DFN-6 E $2.47 $1.76 Yes
LTC5532ES6#PBF SOT-23 E $2.19 Yes
LTC5532ES6#TRMPBF SOT-23 E $2.19 $1.58 Yes
LTC5532ES6#TRPBF SOT-23 E $2.19 $1.56 Yes
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* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC656A LTC5532ES6 | 7 GHz RF Power Detector, Gain and Offset Adjustment $100.00
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