50 MHz to 4 GHz Integrated Circuit Chip TruPwr Detector ADL5501AKSZ-R7
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Detailed Product Description
50 MHz to 4 GHz TruPwr™ Detector
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
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. The ADL5501 is intended for true power
measurement of simple and complex waveforms. The device is
particularly useful for measuring high crest factor (high
peak-to-rms ratio) signals, such as CDMA-, CDMA2000-, W-CDMA-, and
QPSK-/QAMbased OFDM waveforms. The on-chip modulation filter
provides adequate averaging for most waveforms. The on-chip, 100 Ω
series resistance at the output, combined with an external shunt
capacitor, creates a low-pass filter response that reduces the
residual ripple in the dc output voltage. For more complex
waveforms, an external capacitor at the FLTR pin can be used for
supplementary signal demodulation. The ADL5501 offers excellent
temperature stability across a 30 dB range and near 0 dB
measurement error across temperature over the top portion of the
dynamic range. In addition to its temperature stability, the
ADL5501 offers low process variations that further reduce
calibration complexity. The ADL5501 operates from −40°C to +85°C
and is available in a small 6-lead SC-70 package. It is fabricated
on a proprietary high fT silicon bipolar process.
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Product Tags: electronics ic chip integrated circuit ic |
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