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

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.

Features
  • 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 Typical Application
LTC5508 Typical Application
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
Packaging
LTC5508 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC5508ESC6#PBFSC-70E$2.12
LTC5508ESC6#TRMPBFSC-70E$2.12$1.53
LTC5508ESC6#TRPBFSC-70E$2.12$1.51
Demo Boards
Part NumberDescriptionPrice
DC539ALTC5508ESC6 | 7GHz RF Power Detector$100.00
Datasheet
Design Note
Reliability Data
CAD Symbol
Related Products
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R450 Reliability Data
LTC5508 Footprints and Symbols