Product details


2nd harmonic (dBc) 99 3rd harmonic (dBc) 94 @ MHz 100 Acl, min spec gain (V/V) 2 Architecture Fully Differential ADC Driver, Bipolar BW @ Acl (MHz) 6200 Features Shutdown GBW (Typ) (MHz) 8000 Number of channels (#) 1 Operating temperature range (C) -40 to 85 Type RF FDA Slew rate (Typ) (V/us) 17500 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.15 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 Vn at flatband (Typ) (nV/rtHz) 1.25 Vn at 1 kHz (Typ) (nV/rtHz) 3.8 Vos (offset voltage @ 25 C) (Max) (mV) 5 open-in-new Find other RF FDAs

Package | Pins | Size

UQFN (RMS) 14 6 mm² 2.5 x 2.5 open-in-new Find other RF FDAs


  • Gain Bandwidth Product (GBP): 8 GHz
  • Excellent Linearity Performance:
    DC to 2 GHz, G = 12 dB
  • Slew Rate: 17,500 V/µs
  • Low HD2, HD3 Distortion
    (1 VPP, 200 Ω, DE-DE, G = 12 dB):
    • 100 MHz: HD2 at –104 dBc, HD3 at –96 dBc
    • 200 MHz: HD2 at –95 dBc, HD3 at –92 dBc
    • 500 MHz: HD2 at –80 dBc, HD3 at –77 dBc
    • 1 GHz: HD2 at –64 dBc, HD3 at –58 dBc
  • Low IMD2, IMD3 Distortion
    (2 VPP, 200 Ω, DE-DE, G = 12 dB):
    • 200 MHz: IMD2 at –96 dBc, IMD3 at –95 dBc
    • 500 MHz: IMD2 at –80 dBc, IMD3 at –83 dBc
    • 1 GHz: IMD2 at –70 dBc, IMD3 at –63 dBc
  • Input Voltage Noise: 1.25 nV/√Hz
  • Input Current Noise: 3.5 pA/√Hz
  • Supports Single- and Dual-Supply Operation
  • Power Consumption: 55 mA
  • Power-Down Feature
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The LMH5401 device is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, dc-coupled, time-domain applications. The device is ideal for dc- or ac-coupled applications that may require a single-ended-to-differential (SE-DE) conversion when driving an analog-to-digital converter (ADC). The LMH5401 generates very low levels of second- and third-order distortion when operating in SE-DE or differential-to-differential (DE-DE) mode.

The amplifier is optimized for use in both SE-DE and DE-DE systems. The device has unprecedented usable bandwidth from DC to 2 GHz. The LMH5401 can be used for SE-DE conversions in the signal chain without external baluns in a wide range of applications such as test and measurement, broadband communications, and high-speed data acquisition.

A common-mode reference input pin aligns the amplifier output common-mode with the ADC input requirements. Power supplies between 3.3 V and 5 V can be selected and dual-supply operation is supported when required by the application. A power-down feature is also available for power savings.

This level of performance is achieved at a very low power level of 275 mW when a 5-V supply is used. The device is fabricated in Texas Instruments’ advanced complementary BiCMOS process and is available in a space-saving, UQFN-14 package for higher performance.

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Technical documentation

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Type Title Date
* Data sheet LMH5401 8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier datasheet (Rev. D) Feb. 23, 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Application note ADC32RF45: Amplifier to ADC Interface (Rev. A) Sep. 07, 2016
Technical article How to use a fully differential amplifier as a level shifter Jul. 13, 2016
Technical article Disentangling RF amplifier specs: amplifier spot noise vs. noise figure Feb. 05, 2016
User guide TSW12J54EVM User's Guide Oct. 21, 2015
User guide TSW54J60 Evaluation Module User's Guide (Rev. A) Sep. 21, 2015
Technical article How to optimize differential amplifier noise Jul. 07, 2015
User guide LMH5401EVM Evaluation Module (EVM) (Rev. A) Mar. 27, 2015
Technical article Differential to single ended: What happens when you use only one differential amplifier output Mar. 04, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The LMH5401EVM is an evaluation module for the single LMH5401 amplifier in a 14-lead high performance RF package. This evaluation module is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test (...)

  • Configured for split-supply operation and easily modified for single supply
  • Single ended or differential input signals
  • Fully differential output
  • Designed for easy connection to standard 50-Ω input/output impedance test equipment
  • Inputs and outputs include SMA connectors
document-generic User guide

RF Sampling 4GSPS ADC with 8GHz DC-Coupled Fully differential Amplifier. Provides a wide bandwidth high performance AC- or DC-coupled capture platform with up to 2 GHz of continous capture bandwidth. Built-in DDC functions enable tuning, down-conversion and bandwidth reduction of captured signals (...)


  • 12-bit 4GSPS ADC - ADC12J4000
  • 8GHz Fully Differential Amplifier - LMH5401
  • 4.8 GHz Low Phase Noise PLL/VCO TRF3765
  • Clock Jitter Cleaner LMK04828
  • Complete TI Power Solution
  • 2GHz Butterworth Low Pass Filter Design

LMH5401 X-MWblock evaluation modules
Provided by X-Microwave

X-MWblocks consist of RF and Microwave “drop-in” components that can be used individually for prototyping or in production assemblies. X-MWblocks are easy to test, integrate, align and configure to 60 GHz and beyond. No messy Sweat Soldering or Silver Epoxy processes are required (...)

Design tools & simulation

SBOJ019.ZIP (87 KB) - Spice Model
SBOM919B.TSC (365 KB) - TINA-TI Reference Design
SBOM920B.ZIP (10 KB) - TINA-TI Spice Model
SBOMBP6.ZIP (133 KB) - PSpice Model

Reference designs

Many TI reference designs include the LMH5401 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
UQFN (RMS) 14 View options

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