GENERAL DESCRIPTION
The ADL5501 is a mean-responding power detector for use in high frequency receiver and transmitter signal chains from 50 MHz to 4 GHz. It is easy to apply, requiring only a single supply between 2.7 V and 5.5 V and a power supply decoupling capacitor. The input is internally ac-coupled and has a nominal input impedance of 50 Ω. The output is a linear-responding dc voltage with a conversion gain of 6.3 V/V rms at 900 MHz.

FEATURES
   True rms response
   Excellent temperature stability
   Up to 30 dB input dynamic range at 4 GHz
   50 Ω input impedance
   1.25 V rms, 15 dBm, maximum input
   Single-supply operation: 2.7 V to 5.5 V
   Low power: 3.3 mW at 3 V supply
   RoHS-compliant

APPLICATIONS
   Measurement of CDMA2000-, W-CDMA-, and QPSK-/
      QAM-based OFDM, and other complex modulation waveforms
   RF transmitter or receiver power measurement