LTC5508 - 300MHz to 7GHz RF Power Detector with Buffered Output in SC70 Package

Features

  • Click Here for DC539A Evaluation Kits
  • Temperature Compensated Internal Schottky Diode RF Detector
  • Wide Input Frequency Range: 300MHz to 7GHz
  • Wide Input Power Range: –32dBm to 12dBm
  • Buffered Detector Output
  • Wide VCC Range of 2.7V to 6V
  • Low Operating Current: 550µA
  • Low Shutdown Current: <2µA
  • SC70Package

Typical Application

LTC5508
LTC5508
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Description

The LTC5508 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 SC70 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 LTC5508 operates with input power levels from –32dBm to 12dBm.

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Packaging

SC70

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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC5508ESC6 SOT 6 E $2.12 $1.45 View
LTC5508ESC6#PBF SC70 6 E $2.12 $1.50 View
LTC5508ESC6#TR SC70 6 E $2.12 $1.51 View
LTC5508ESC6#TRM SC70 6 E $2.12 $1.53 View
LTC5508ESC6#TRMPBF SC70 6 E $2.12 $1.53 View
LTC5508ESC6#TRPBF SC70 6 E $2.12 $1.51 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.

Evaluation Kits

Part Number Description Price
DC539A LTC5508ESC6 | 7GHz RF Power Detector $100.00
DC539B LTC5509ESC6 | 3 GHz RF Power Detector (No Gain Compression) $100.00
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Applications

  • 802.11a, 802.11b, 802.11g, 802.15
  • Multimode Mobile Phone Products
  • Optical Data Links
  • Wireless Data Modems
  • Wireless and Cable Infrastructure
  • RF Power Alarm
  • Envelope Detector
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Simulate

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

For other simulation tools, visit our Design Simulation and Device Models page.

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