Catalog
300MHz to 11GHz Precision Dual RF Power Detector
Key Features
• Two Independent Temperature Compensated Schottky Diode RF Peak Detectors
• 45dB Channel-to-Channel Isolation at 2GHz
• Wide Input Frequency Range: 300MHz to 11GHz*
• Wide Input Power Range: -32dBm to 12dBm
• Buffered Detector Outputs with Gain of 2x
• Adjustable VOUTStarting Voltage
• Wide VCCRange of 2.7V to 6V
• Low Operating Current: <500µA/Channel
• Low Shutdown Current: <2µA/Channel
• 4mm × 3mm DFN Package
Description
AI
The LTC5533 is a dual channel RF power detector for RF applications operating in the 300MHz to 11GHz range. Two independent temperature compensated Schottky diode peak detectors and buffer amplifiers are combined in a small 4mm × 3mm DFN package.The RF input voltage is peak detected using on-chip Schottky diodes. The detected voltage is buffered and supplied to the VOUTpins. A power saving shutdown mode reduces current to less than 2µA/channel. The initial output starting voltages can be precisely adjusted using the VOSpins.The LTC5533 operates with input power levels from -32dBm to 12dBm.*Higher frequency operation is achievable with reduced performance. Consult factory for more information.ApplicationsPA Forward and Reverse Power MonitorDual PA Transmit Power Control802.11a, b, g, 802.15, WiMAXPA LinearizationFixed Wireless AccessRF Power AlarmEnvelope Detector