LTC5531 - Precision 300MHz To 7GHz RF Detector With Shutdown And Offset Adjustment

The LTC5531 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 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 current to less than 2A. The initial offset voltage of 120mV 35mV CAN be precisely adjusted using the VOS pin.
The LTC5531 operates with input power levels from 32dBm to 10dBm.
*Higher frequency operation is achievable with reduced performance. Consult factory for more information.
By Linear Technology Corporation