ADL5903
Info : RECOMMENDED FOR NEW DESIGNS
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ADL5903

200 MHz to 6 GHz 35 dB TruPwr™ Detector

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.89
Features
  • Accurate rms-to-dc conversion from 200 MHz to 6 GHz
  • Measurement dynamic range of 35 dB
    Ripple-free transfer function
  • Single-ended input, 50 Ω source compatible
    No external matching required
  • Linear in decibels output, scaled 35.5 mV/dB at 900 MHz
  • Waveform and modulation independent, such as
    GSM/CDMA/W-CDMA /TD-SCDMA/LTE
  • Excellent temperature stability
  • Operates from 3.0 V to 5.0 V from −55°C to +125°C
  • Low power consumption: 3 mA at 3.0 V to 5.0 V supply
  • 8-lead, 2 mm × 2 mm LFCSP package
Additional Details
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The ADL5903 is a true rms responding power detector that has a 35 dB measurement range. It features low power consumption and an intrinsically ripple-free error transfer function.

The ADL5903 provides a solution in a variety of high frequency systems requiring an accurate measurement of signal power. Requiring only a single supply of 3.0 V to 5.0 V and a few capacitors, it is easy to use and capable of being driven single-ended or with a balun for differential input drive. An on-chip matching network provides good return loss over the specified frequency range of the device. The ADL5903 can operate from 200 MHz to 6 GHz and can accept inputs from −30 dBm to +20 dBm.

The ADL5903 can be used to determine the true power of a high frequency signal with a complex modulation envelope including large crest factor signals such as GSM, CDMA, W-CDMA, TD-SCDMA, and LTE modulated signals. The output is then proportional to the logarithm of the rms value of the input. In other words, the reading is presented directly in decibels and is scaled about 35.5 mV/dB at 900 MHz.

The ADL5903 has low power consumption when operational and a disable mode that further reduces the power consumption. Power consumption is less than 100 μA when the ADL5903 enters power-down mode through a logic low at Pin ENBL. The ADL5903 is supplied in a 2 mm × 2 mm, 8-lead LFCSP for operation over the wide temperature range of −55°C to +125°C.

Applications

  • Power amplifier linearization/control loops
  • Transmitter power controls
  • Transmitter signal strength indication (TSSI)
  • RF instrumentation
  • Wireless repeaters
Part Models 2
1ku List Price Starting From $2.89

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADL5903ACPZN-R7
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ADL5903SCPZN-R7
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Part Models

Product Lifecycle

PCN

Aug 8, 2022

- 22_0192

Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

Aug 1, 2016

- 16_0035

Assembly Relocation of Select LFCSP, Mini-LFCSP and LFCSP Side Solderable Products to STATS ChipPAC China Jiangyin

Sep 8, 2014

- 14_0191

Addition of Polyimide Layer to ADL5903

May 12, 2014

- 14_0114

Assembly Transfer of Select 2x2 mm Mini-LFCSP Products to STATS ChipPAC China

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Aug 8, 2022

- 22_0192

arrow down

Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

Aug 1, 2016

- 16_0035

arrow down

Assembly Relocation of Select LFCSP, Mini-LFCSP and LFCSP Side Solderable Products to STATS ChipPAC China Jiangyin

Sep 8, 2014

- 14_0191

arrow down

Addition of Polyimide Layer to ADL5903

May 12, 2014

- 14_0114

arrow down

Assembly Transfer of Select 2x2 mm Mini-LFCSP Products to STATS ChipPAC China

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADL5903

ADL5903 Evaluation Board

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EVAL-ADL5903

ADL5903 Evaluation Board

ADL5903 Evaluation Board

Product Detail

The ADL5903-EVALZ is a fully populated, 4-layer, FR4-based evaluation board. For normal operation, it requires a 3.0 V to 5.0 V/15 mA power supply. The power supply must be connected to the test  loops labeled VPOS and COMM. The RF input signal is applied to the SMA connector (RFIN). The output voltage is available on the SMA connector (VOUT) or on the test loop (OUT).

Resources

Tools & Simulations

Tools & Simulations 2

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