DESCRIPTION

The LTC®5535 is an RF power detector for RF applications operating in the 600MHz to 7GHz range. A temperature compensated Schottky diode peak detector and output amplifier are combined in a small ThinSOTTM package. The supply voltage range is optimized for operation from a single cell lithium-ion or three cell NiMH battery. The RF input voltage is peak detected using an on- chip Schottky diode. The detected voltage is buffered and supplied to the VOUT pin

FEATURES

■ Temperature Compensated Internal Schottky Diode RF Detector
■ Wide Input Frequency Range: 600MHz to 7GHz*
■ Wide Input Power Range: –32dBm to 10dBm
■ External Gain Control
■ Precision VOUT Offset Control
■ Low Starting Voltage: 200mV for Gain = 2
■ Wide VCC Range of 2.7V to 5.5V
■ Low Operating Current: 2mA
■ Available in a Low Profile (1mm) SOT-23 Package

APPLICATIONS

■ 802.11a, 802.11b, 802.11g, 802.15, 802.16
■ Multimode Mobile Phone Products
■ Optical Data Links
■ Wireless Data Modems
■ Wireless and Cable Infrastructure
■ RF Power Alarm
■ Envelope Detector