AD8312ACBZ-P7 (ANALOG DEVICES)

The AD8312ACBZ-P7 is a RF Detector for the measurement of RF signals in the frequency range of 50MHz to 3.5GHz. It has a typical dynamic range of 45dB 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. Its high sensitivity allows measurement at low power levels, thus reducing the amount of power that needs to be coupled to the detector. It is essentially a voltage-responding device, with a typical signal range of 1.25 to 224mVrms or -45 to 0dBm, referencing 50R. For convenience, the signal is internally ac-coupled, using a 5pF capacitor to a load of 3kR in shunt with 1.3pF. This high-pass coupling, with a corner at approximately 16MHz, determines the lowest operating frequency. Therefore, the source may be DC grounded.