Produktdetails

Frequency (min) (MHz) 50 Frequency (max) (MHz) 8000 Type RMS Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5 Supply current (µA) 4800 Number of channels 1 Dynamic range (typ) (dB) 45 Operating temperature range (°C) -40 to 85 Rating Catalog
Frequency (min) (MHz) 50 Frequency (max) (MHz) 8000 Type RMS Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5 Supply current (µA) 4800 Number of channels 1 Dynamic range (typ) (dB) 45 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YFQ) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • Wide Supply Range from 2.7 V to 5 V
  • Logarithmic Root Mean Square Response
  • 45-dB Linear-in-dB Power Detection Range
  • Multi-Band Operation from 50 MHz to 8 GHz
  • LOG Conformance Better than ±0.5 dB
  • Highly Temperature Insensitive, ±0.25 dB
  • Modulation Independent Response, 0.08 dB
  • Minimal Slope and Intercept Variation
  • Shutdown Functionality
  • Tiny 6-Bump DSBGA Package
  • Wide Supply Range from 2.7 V to 5 V
  • Logarithmic Root Mean Square Response
  • 45-dB Linear-in-dB Power Detection Range
  • Multi-Band Operation from 50 MHz to 8 GHz
  • LOG Conformance Better than ±0.5 dB
  • Highly Temperature Insensitive, ±0.25 dB
  • Modulation Independent Response, 0.08 dB
  • Minimal Slope and Intercept Variation
  • Shutdown Functionality
  • Tiny 6-Bump DSBGA Package

The LMH2110 is a 45-dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios; that is, large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement.

The device has an RF frequency range from 50 MHz to 8 GHz. It provides an accurate, temperature and supply insensitive output voltage that relates linearly to the RF input power in dBm. The LMH2110 device has excellent conformance to a logarithmic response, enabling easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7 V to 5 V. The LMH2110 has an RF power detection range from –40 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively, a resistive divider can be used.

The device is active for EN = High; otherwise, it is in a low power-consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown.

The LMH2110 is a 45-dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios; that is, large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement.

The device has an RF frequency range from 50 MHz to 8 GHz. It provides an accurate, temperature and supply insensitive output voltage that relates linearly to the RF input power in dBm. The LMH2110 device has excellent conformance to a logarithmic response, enabling easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7 V to 5 V. The LMH2110 has an RF power detection range from –40 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively, a resistive divider can be used.

The device is active for EN = High; otherwise, it is in a low power-consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMH2110 8-GHz Logarithmic RMS Power Detector with 45-dB Dynamic Range datasheet (Rev. D) PDF | HTML 30 Jun 2015
Application note VSWR Detection Using LMH2110 PDF | HTML 16 Nov 2023
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note AN-2014 LMH2110 Evaluation Board (Rev. B) 07 Jul 2014

Design und Entwicklung

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Evaluierungsplatine

LMH2110TMEVAL — LMH2110-Evaluierungsplatine

The evaluation board is designed to help the evaluation of the LMH2110, which is a 45 dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e. large variations of the signal envelope. Such signals (...)

Referenzdesigns

TIDA-00897 — Referenzdesign für hochgenauen Leistungsdetektor für logarithmische RMS für WLAN-Anwendungen

Dynamic transmit-power control is critical for improving spectral efficiency and reducing adjacent channel interference in wireless local area networks (WLANs). In addition, regulatory agencies worldwide require that transmit power be limited to a certain level to reduce interference with other (...)
Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YFQ) 6 Ultra Librarian

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