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LMH2110TM/NOPB

8GHz log RMS power detector, 45dB range, 50MHz-8GHz, 2.7-5V, DSBGA-6

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Manufacturer Part：

LMH2110TM/NOPB

Package：

DSBGA-6 (YFQ) - 1.4 x 1.4 x 0.6 mm

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Description

Product Overview

The LMH2110TM/NOPB is an 8 GHz logarithmic RMS power detector manufactured by Texas Instruments, featuring a 45 dB dynamic range in a tiny 6-bump DSBGA (YFQ) package. The device provides a temperature-insensitive output voltage that is linear-in-dB with respect to RF input power, making it particularly suited for accurate power measurement of modulated signals with high peak-to-average ratios such as W-CDMA and LTE.

Key Specifications

Detection Type Logarithmic RMS
Frequency Range 50 MHz to 8 GHz
Dynamic Range 45 dB typical
RF Input Power Range -40 dBm to +5 dBm
LOG Conformance Better than +/-0.5 dB
Supply Voltage 2.7V to 5.0V
Supply Current 4.8 mA (typical active)
Operating Temperature -40°C to +85°C
Package DSBGA-6 (1.4 x 1.4 mm)

Features

  • True RMS response ensures modulation-independent power measurement
  • 45 dB linear-in-dB detection range from -40 dBm to +5 dBm
  • Multi-band operation from 50 MHz to 8 GHz for versatile deployment
  • Highly temperature-insensitive output with +/-0.25 dB variation
  • Shutdown mode with high-impedance output to preserve filter capacitance

Applications

  • W-CDMA and LTE cellular transmit power control loops
  • RF power amplifier linearization feedback
  • Directional coupler-based power monitoring
  • Smartphone and data card transmit power measurement
  • General-purpose RF power detection in instrumentation

The LMH2110TM/NOPB from Texas Instruments is a 45 dB logarithmic RMS power detector that operates from 50 MHz to 8 GHz. Its RMS measurement topology inherently ensures modulation-insensitive power readings, making it ideal for W-CDMA, LTE, and other high-PAR signal environments. The device provides an output voltage linearly proportional to the RF input power in dBm, with excellent log conformance better than +/-0.5 dB and temperature stability of +/-0.25 dB. Operating from a single 2.7V to 5V supply and consuming only 4.8 mA typical, the LMH2110 is packaged in a tiny 6-bump DSBGA for space-constrained applications.

The LMH2110 uses a logarithmic RMS detection architecture consisting of a cascaded chain of limiting amplifier stages with rectifying detectors at each stage. The RF input signal is internally terminated with 50 ohms and amplified through the limiting chain. At each stage, the signal is partially rectified, and the combined rectified outputs produce a logarithmic (linear-in-dB) relationship between the output voltage and the RF input power. The RMS computation is performed by the integrated square-law detector and low-pass filter, ensuring that the output is proportional to the true RMS power regardless of the signal modulation. The enable (EN) pin controls shutdown mode, during which the output becomes high-impedance.

Pin Name Type Function
A1 VDD Power Positive supply voltage (2.7V to 5V)
A2 OUT Output Ground-referenced detector output voltage
B1 RFIN RF Input RF input signal, internally terminated 50 ohms
B2 GND Ground Power ground (may be left floating if not feasible)
C1 GND Ground Power ground
C2 EN Input Enable: High=active, Low=shutdown
  • LTE and W-CDMA transmit power control loops in cellular base stations and handsets
  • RF power amplifier linearization and predistortion feedback paths
  • Directional coupler-based VSWR and reflected power monitoring
  • RF instrumentation and spectrum analyzer power measurement stages
  • IoT gateway transmit power calibration and regulatory compliance
Manufacturer Part Number Package Notes
ADI AD8318 LFCSP-16 8GHz log detector, 60dB range
ADI AD8367 TSSOP-16 2.5GHz RMS detector, variable gain
Maxim MAX2016 TQFN-20 2.5GHz log detector/controller
TI LMV221 DSBGA-6 2.5GHz RMS power detector
NXP BGA2818 QFN DC-3GHz RMS detector
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Contact Information

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Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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