LTC5531 Series

Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment

Catalog

Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment

Part	Current - Supply	Frequency [Min]	Frequency [Max]	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Mounting Type	RF Type	Package / Case	Input Range [Min]	Input Range [Max]
Analog Devices LTC5531ES6#TRPBF	500 µA	300 MHz	7 GHz	TSOT-23-6	6 V	2.7 V	Surface Mount	802.11a/b/g/WiFi 802.16/WiMax WLAN	SOT-23-6 Thin TSOT-23-6	-32 dBm	10 dBm

Catalog

Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment

Key Features

• Temperature Compensated Internal Schottky Diode RF Detector

• Wide Input Frequency Range: 300MHz to 7GHz*

• Wide Input Power Range: –32dBm to 10dBm

• Buffered Detector Output

• Precision VOUTOffset Control

• Wide VCCRange of 2.7V to 6V

• Low Operating Current: 500µA

• Low Shutdown Current: <2µA

• Available in a Low Profile (1mm) SOT-23 Package

Description

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 VOUTpin. A power saving shutdown mode reduces current to less than 2µA. The initial offset voltage of 120mV ±35mV can be precisely adjusted using the VOSpin.The LTC5531 operates with input power levels from –32dBm to 10dBm.*Higher frequency operation is achievable with reduced performance. Consult factory for more information.Applications802.11a, 802.11b, 802.11g, 802.15, 802.16Multimode Mobile Phone ProductsOptical Data LinksWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector