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Linear power detector has offset, gain adjustment

Posted: 29 Oct 2003 ?? ?Print Version ?Bookmark and Share

Keywords:linear technology? ltc5532? rf power detector?

Linear Technology Corp. has introduced the LTC5532, a precision RF power detector designed for monitoring and control applications in wireless communication transceivers. An integrated device that is factory trimmed to measure RF signals from 300MHz to 7GHz, the detector is suitable for equipment including the 802.11a, b, and g WiFi systems, 5.8GHz WAN and WLAN radios and other licensed band transceivers. The product's RF input signal range extends from -32dBm to 8dBm.

Employing a peak-detection architecture, the LTC5532 provides a stable dc output voltage as a function of the RF input power. It also features an adjustable offset and gain, with the gain-adjustable amplifier can be configured as a threshold comparator for applications such as RF presence detectors and RF power alarms.

Offered in a 6-lead ThinSOT-23 package, the device can be powered from a single 2.7V to 6V supply, and draws 500?A of current. Pricing starts at $2 each in 1,000-piece quantities.

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