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
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
UQFN (RMS) 14 6 mm² 2.5 x 2.5
  • 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
  • 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

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.

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

Design & development

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

Evaluation board

LMH5401EVM — LMH5401 Evaluation Module

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 (...)

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Evaluation board

TSW12J54EVM — Wideband RF receiver reference design

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 (...)

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Limit: 3
Evaluation board

XMICR-3P-LMH5401 — LMH5401 X-MWblock evaluation modules

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 (...)

From: X-Microwave
Simulation model

LMH5401 ADS Model

SBOJ019.ZIP (87 KB) - Spice Model
Simulation model

LMH5401 TINA Reference Design (Rev. B)

SBOM919B.TSC (365 KB) - TINA-TI Reference Design
Simulation model

LMH5401 TINA Macromodel (Rev. B)

SBOM920B.ZIP (10 KB) - TINA-TI Spice Model
Simulation model

LMH5401 PSpice Model

SBOMBP6.ZIP (133 KB) - PSpice Model
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