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LMH9226

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Single-ended to differential 2.3 - 2.9 GHz low-power ADC driver with integrated balun

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Product details

Parameters

Current consumption (mA) 83 Frequency (Min) (MHz) 2300 Frequency (Max) (MHz) 2900 Gain (Typ) (dB) 17 Impedance match (Ohms) 50 Noise figure (Typ) (dB) 3 Number of channels (#) 1 Operating temperature range (C) -40 to 105 Output IP3 (Typ) (dBm) 35 P1dB (Typ) (dBm) 17.5 Type Active Balun Power down current Yes open-in-new Find other RF gain block amplifiers

Package | Pins | Size

WQFN (RRL) 12 4 mm² 2 x 2 open-in-new Find other RF gain block amplifiers

Features

  • Single-channel, single-ended input to differential output RF gain block amplifier
  • Supports 2.6-GHz center frequency with
    400-MHz, 1-dB bandwidth
  • 17-dB typical gain across the 1-dB bandwidth into ZLOAD = 50 Ω
  • Noise figure < 3 dB in 1-dB bandwidth
  • 35-dBm OIP3 at 2-dBm two-tone output power into ZLOAD = 50 Ω
  • 17.5-dBm output P1dB into ZLOAD = 50 Ω
  • 275-mW power consumption on 3.3-V single supply
  • Up to TA = 105°C operating temperature

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Description

The LMH9226 is high-performance, single-channel, single-ended, 50-Ω input to differential 50-Ω or 100-Ω output RF gain block amplifier supporting a 2.3-GHz to 2.9-GHz frequency band. The device is well suited to meet requirements for 5G m-MIMO or small cell base station applications. The device integrates the functionality of a single-ended input and output RF gain block followed by a passive balun, where the device is mainly used in the final stage of a receiver signal chain to drive the full-scale voltage of an analog-to-differential converter (ADC) differential input.

The LMH9226 provides 17-dB typical gain with excellent linearity performance of 35-dBm output IP3 at 2.6 GHz, and maintains less than a 3-dB noise figure across the entire 1-dB bandwidth of 400 MHz. The device is internally matched for a 50-Ω impedance at the single-ended input. The differential output can easily interface to a 50-Ω impedance without any external matching circuitry. For 100-Ω impedance matching, an external matching circuitry is required that typically results in a 0.3-dB gain loss at 2.6 GHz.

Operating on a single 3.3-V supply, the device consumes approximately 275 mW of stand-by power, making the device suitable for high-density, 5G, massive multiple-input and multiple-output (MIMO) applications. Also, the device is available in a space-saving, 2-mm × 2-mm, 12-pin WQFN package. The device is rated for an operating temperature of up to 105°C to provide a robust system design. A 1.8-V JEDEC compliant power-down pin is available for fast power-down and power-up of the device that is suitable for time division duplex (TDD) systems.

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Technical documentation

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Type Title Date
* Datasheet LMH9226 Single-Ended to Differential 2.3-GHz to 2.9-GHz RF Amplifier With Balun datasheet Dec. 16, 2018
More literature LMH9226RRLEVM EU Declaration of Conformity (DoC) Apr. 28, 2020
User guides LMH9226 Evaluation Module User's Guide Dec. 13, 2019

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description
The LMH9226 evaluation module (EVM) is used to evaluate the LMH9226 device, which is a single-ended input to differential output 19dB gain block amplifier available in 2x2mm2 12-pin RRL package. The device is well suited to support requirements for the next generation 5G m-MIMO Active antenna system (...)
Features
  • Operates on single +3.3V supply
  • Designed for single-ended 50 Ω input matching and differential 100Ω output matching interface
  • Simple interface to the inputs and output through on-board SMA connectors
  • Power down option available on board using jumper connector

Design tools & simulation

SIMULATION MODELS Download
SBOMB32.ZIP (8 KB) - S-Parameter Model

CAD/CAE symbols

Package Pins Download
WQFN (RRL) 12 View options

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