LTC5508

PRODUCTION

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

Analog Devices LTC5508 Product Info

10 February 2026 7

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 V_CC Range of 2.7V to 6V
Low Operating Current: 550µA
Low Shutdown Current: <2µA
SC70Package

Part details & applications

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 V_out pin. A power saving shutdown mode reduces supply current to less than 2µA.

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

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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