AD8312

Data Sheet 50 MHz to 3.5 GHz, 45 dB RF Detector AD8312 FEATURES GENERAL DESCRIPTION Complete RF detector function Typical range: −45 dBm to 0 dBm, referencing 50 Ω Frequency response from 50 MHz to 3.5 GHz Temperature stable linear in dB response Accurate to 3.5 GHz Rapid response: 85/120 ns (rise/fall) Low power: 12 mW at 2.7 V APPLICATIONS Cellular handsets (GSM, CDMA, WCDMA) RSSI and TSSI for wireless terminal devices Transmitter power measurement The AD8312 is a complete, low cost subsystem for the measurement of radio frequency (RF) signals in the frequency range of 50 MHz to 3.5 GHz. It has a typical dynamic range of 45 dB and is intended for use in a wide variety of cellular handsets and other wireless devices. It provides a wider dynamic range and better accuracy than possible using discrete diode detectors. In particular, its temperature stability is excellent over the full operating range of −40°C to +85°C. Its high sensitivity allows measurement at low power leve...