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Radiofrecuencia y microondas
Amplificadores de RF
Amplificadores totalmente diferenciales (FDA) de RF

LMH3401

ACTIVO

Amplificador completamente diferencial de 7 GHz y banda ultra ancha

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LMH3401

ACTIVO
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Detalles del producto

Type RF FDA Frequency (min) (MHz) 0 Frequency (max) (MHz) 4000 Gain (typ) (dB) 16 Noise figure (typ) (dB) 9.4 OIP3 (typ) (dBm) 33 P1dB (typ) (dBm) 13 Frequency of harmonic distortion measurement (GHz) 1 3rd harmonic (dBc) -72 OIP2 (typ) (dBm) 67.5 2nd harmonic (dBc) -64 Current consumption (mA) 55 Number of channels 1 Operating temperature range (°C) -40 to 85 Rating Catalog Output enable Yes
Type RF FDA Frequency (min) (MHz) 0 Frequency (max) (MHz) 4000 Gain (typ) (dB) 16 Noise figure (typ) (dB) 9.4 OIP3 (typ) (dBm) 33 P1dB (typ) (dBm) 13 Frequency of harmonic distortion measurement (GHz) 1 3rd harmonic (dBc) -72 OIP2 (typ) (dBm) 67.5 2nd harmonic (dBc) -64 Current consumption (mA) 55 Number of channels 1 Operating temperature range (°C) -40 to 85 Rating Catalog Output enable Yes
UQFN (RMS) 14 6.25 mm² (2.5 mm × 2.5 mm)
  • Excellent Single-Ended to Differential Conversion Performance from DC to 2 GHz
  • 7-GHz, –3-dB Bandwidth
  • Excellent HD2 and HD3 to 2 GHz:
    • –96 (HD2), –102 (HD3) at 10 MHz
    • –79 (HD2), –77 (HD3) at 500 MHz
    • –64 (HD2), –72 (HD3) at 1 GHz
    • –55 (HD2), –40 (HD3) at 2 GHz
  • Best in Class OIP3 Performance to 2 GHz:
    • 45 dBm at 200 MHz
    • 33 dBm at 1 GHz
    • 24 dBm at 2 GHz
  • Fixed Single-Ended to Differential Voltage Gain: 16 dB
  • Noise Figure: 9 dB at 200 MHz (RS = 50 Ω)
  • Slew Rate: 18,000 V/µs
  • Supports Single-Supply or Split-Supply Operation
  • Powered-Down Feature
  • Supply Current: 55 mA
  • Excellent Single-Ended to Differential Conversion Performance from DC to 2 GHz
  • 7-GHz, –3-dB Bandwidth
  • Excellent HD2 and HD3 to 2 GHz:
    • –96 (HD2), –102 (HD3) at 10 MHz
    • –79 (HD2), –77 (HD3) at 500 MHz
    • –64 (HD2), –72 (HD3) at 1 GHz
    • –55 (HD2), –40 (HD3) at 2 GHz
  • Best in Class OIP3 Performance to 2 GHz:
    • 45 dBm at 200 MHz
    • 33 dBm at 1 GHz
    • 24 dBm at 2 GHz
  • Fixed Single-Ended to Differential Voltage Gain: 16 dB
  • Noise Figure: 9 dB at 200 MHz (RS = 50 Ω)
  • Slew Rate: 18,000 V/µs
  • Supports Single-Supply or Split-Supply Operation
  • Powered-Down Feature
  • Supply Current: 55 mA

The LMH3401 is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. This device is ideal for dc- or ac-coupled applications that require a single-ended to differential conversion when driving an analog-to-digital converter (ADC). The LMH3401 generates very low levels of second-order and third-order distortion when operating in single-ended-input to differential-output or differential-input to differential-output mode.

The on-chip resistors simplify printed circuit board (PCB) implementation and provide the highest performance over the usable bandwidth of 2 GHz. This performance makes the LMH3401 ideal for applications such as test and measurement, broadband communications, and high-speed data acquisition. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements. Use this device with power supplies between 3.3 V and 5.0 V; dual-supply operation is supported when required by the application.

This level of performance is achieved at a very low power level of 275 mW when a 5.0-V supply is used. A power-down feature is also available for power savings. The LMH3401 is fabricated in Texas Instruments' advanced complementary BiCMOS process and is available in a space-saving, 14-lead UQFN package with a specified operating temperature range of –40°C to 85°C.

The LMH3401 is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. This device is ideal for dc- or ac-coupled applications that require a single-ended to differential conversion when driving an analog-to-digital converter (ADC). The LMH3401 generates very low levels of second-order and third-order distortion when operating in single-ended-input to differential-output or differential-input to differential-output mode.

The on-chip resistors simplify printed circuit board (PCB) implementation and provide the highest performance over the usable bandwidth of 2 GHz. This performance makes the LMH3401 ideal for applications such as test and measurement, broadband communications, and high-speed data acquisition. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements. Use this device with power supplies between 3.3 V and 5.0 V; dual-supply operation is supported when required by the application.

This level of performance is achieved at a very low power level of 275 mW when a 5.0-V supply is used. A power-down feature is also available for power savings. The LMH3401 is fabricated in Texas Instruments' advanced complementary BiCMOS process and is available in a space-saving, 14-lead UQFN package with a specified operating temperature range of –40°C to 85°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMH3401 7-GHz, Ultra-Wideband, Fixed-Gain, Fully-Differential Amplifier datasheet (Rev. A) PDF | HTML 4/12/2014
Libro electrónico The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28/03/2017
Nota sobre la aplicación ADC32RF45: Amplifier to ADC Interface (Rev. A) 7/09/2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LMH3401EVM — Módulo de evaluación LMH3401

The LMH3401EVM is an evaluation module for the single LMH3401 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 (...)

Guía del usuario: PDF
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En inventario
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Placa de evaluación

TSW54J60EVM — Digitalizador de ancho de banda de entrada de 400 MHz: ADC doble de 16 bits, 1 GSPS y amperios de ga

The TSW54J60EVM is an evaluation module (EVM) that allows for the evaluation of Texas Instruments’ ADS54J60, LMH3401, LMH6401 and LMK04828 devices. The ADS54J60 is a low power, 16-bit, 1-GSPS analog to digital converter (ADC) with a buffered analog input and outputs featuring a JESD204B (...)

Guía del usuario: PDF
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Modelo de simulación

LMH3401 ADS Model

SBOJ020.ZIP (69 KB) - Modelo Spice
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Modelo de simulación

LMH3401 PSpice Model

SBOMBP5.ZIP (128 KB) - Modelo PSpice
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Modelo de simulación

LMH3401 TINA-TI Reference Design (Rev. C)

SBOM909C.TSC (473 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

LMH3401 TINA-TI Spice Model (Rev. C)

SBOM910C.ZIP (8 KB) - Modelo TINA-TI Spice
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Herramienta de cálculo

RF-CASCADE-CALC-TOOL — Calculadora en cascada de RF TI

A browser-based RF lineup analysis tool supporting up to 10 stages. Computes gain, NF, OIP3, OIP2, OP1dB, and derived metrics. Features dual-axis Plotly charts, P1dB saturation detection, and export to CSV
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Herramienta de cálculo

SBOR022 — TI FDA Calculator

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Diseño de referencia

TIDA-00659 — Diseño de referencia de placa del amplificador de 8 GHz en cascada de dos etapas

This board cascades two LMH5401 or LMH3401 amplifiers for more gain or more DC common mode shift.

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Diseño de referencia

TIDA-00822 — Diseño de referencia del digitalizador de 1 GSPS de 16 bits con amplificador de ganancia variable ac

This reference design discusses the use and performance of the Digital Variable-Gain high-speed amplifier, the LMH6401, to drive the high-speed analog-to-digital converter (ADC), the ADS54J60 device. Different options for common-mode voltages, power supplies, and interfaces are discussed and (...)

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Diseño de referencia

TIDA-00823 — Diseño de referencia del digitalizador de 1 GSPS de 16 bits con amplificador de ganancia fija acopla

Este diseño de referencia analiza el uso y el rendimiento del amplificador de alta velocidad de ganancia fija y banda ultraancha LMH3401 para controlar el convertidor analógico a digital (ADC) de alta velocidad ADS54J60. Se analizan y miden diferentes opciones para tensiones de modo común, fuentes (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
UQFN (RMS) 14 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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