GENERAL DESCRIPTION

The ADL5501 is a mean-responding TruPwr? power detector for use in high frequency receiver and transmitter signal chains from 50 MHz to 6 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

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 CDMA-, CDMA2000-, W-CDMA-, and QPSK-/

QAM-based OFDM, and other complex modulation

waveforms

RF transmitter or receiver power measurement