AD8362ARUZ-REEL7 RF/IF and RFID

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1. DESCRIPTION

The AD8362ARUZ-REEL7 is a true rms-responding power detector that has a 65 dB measurement range. It is intended for use in a variety of high frequency communication systems and in instrumentation requiring an accurate response to signal power. It is easy to use, requiring only a single supply of 5 V and a few capacitors. It operates from arbitrarily low frequencies to over 3.8 GHz and accepts inputs from −52 dBm to +8 dBm with crest factors that are typical of quadrature amplitude modulation (QAM) and orthogonal frequency division multiplexing (OFDM) modulation schemes. The AD8362ARUZ-REEL7 has a 1.3 mW power consumption when powered down by a logic high applied to the PWDN pin. It powers up within about 20 μs to its nominal operating current of 20 mA at 25°C. The AD8362ARUZ-REEL7 is supplied in a 16-lead TSSOP for operation over the temperature range of −40°C to +85°C.

2. FEATURES

    1. Complete, fully calibrated measurement/control system

    2. Accurate rms-to-dc conversion from 50 Hz to 3.8 GHz

    3. Input dynamic range of >65 dB: −52 dBm to +8 dBm in 50 Ω

    4. Waveform and modulation independent, such as GSM/CDMA/TDMA

    5. Linear-in-decibels output, scaled 50 mV/dB

    6. Law conformance error of 0.5 dB

    7. All functions temperature and supply stable

    8. Operates from 4.5 V to 5.5 V at 24 mA 

    9. Power-down capability to 1.3 mW

3. APPLICATIONS

    1. Power amplifier linearization/control loops

    2. Transmitter power controls

    3. Transmitter signal strength indication (TSSI)

    4. Radio frequency (RF) instrumentation