RF & Wireless RF Schottky Peak Detectors

LTC5505 - RF Power Detector with Buffered Output and >40dB Dynamic Range

Features

  • Internal Schottky Diode RF Detector with Two Input Power Ranges:
    LTC5505-1, –28dBm to 18dBm
    LTC5505-2, –32dBm to 12dBm
  • Wide Input Frequency Range: 300MHz to 3GHz (LTC5505-1); 300MHz to 3.5GHz (LTC5505-2)
  • Temperature Compensated
  • Buffered Detector Output
  • Wide VCC Range of 2.7V to 6V
  • Low Operating Current: 0.5mA
  • Low Shutdown Current: <2µA
  • Low Profile (1mm) ThinSOT Package

Typical Application

LTC5505 Typical Application

Description

The LTC5505-X is an RF power detector for RF applications operating in the 300MHz to 3.5GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small 5-pin ThinSOT package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.

The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUT pin. A power saving shutdown mode reduces supply current to less than 2µA.

The LTC5505-1 operates with input power levels from –28dBm to 18dBm. The LTC5505-2 operates with input power levels from –32dBm to 12dBm.

Packaging

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

SOT-23

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC5505-1ES5 SOT 5 E $1.42 View
LTC5505-1ES5#PBF SOT 5 E $1.42 View
LTC5505-1ES5#TR SOT 5 E $1.42 $1.20 View
LTC5505-1ES5#TRM SOT 5 E $1.42 $1.22 View
LTC5505-1ES5#TRMPBF SOT 5 E $1.42 $1.22 View
LTC5505-1ES5#TRPBF SOT 5 E $1.42 $1.20 View
LTC5505-2ES5 SOT 5 E $1.42 View
LTC5505-2ES5#PBF SOT 5 E $1.42 View
LTC5505-2ES5#TR SOT 5 E $1.42 $1.19 View
LTC5505-2ES5#TRM SOT 5 E $1.42 $1.21 View
LTC5505-2ES5#TRMPBF SOT 5 E $1.42 $1.21 View
LTC5505-2ES5#TRPBF SOT 5 E $1.42 $1.19 View
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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
DC391A-A LTC5505-1ES5 | -28dBm to 18dBm RF Power Detector (postage stamp) $100.00
DC391A-B LTC5505-2ES5 | -32dBm to 12dBm RF Power Detector (postage stamp) $100.00
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Click here to view our complete list of demo boards

Applications

  • Multimode Mobile Phone Products
  • PCS Devices
  • Wireless Data Modems
  • Wireless and Cable Infrastructure
  • RF Power Alarm
  • Envelope Detector

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Related models available in LTspice IV
LTC5505-1
LTC5505-2

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