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Product details

Parameters

2nd harmonic (dBc) 96 3rd harmonic (dBc) 102 @ MHz 10 Acl, min spec gain (V/V) 6.3 Architecture Fully Differential ADC Driver BW @ Acl (MHz) 7000 Features Shutdown, On chip gain resistors GBW (Typ) (MHz) 8000 Number of channels (#) 1 Operating temperature range (C) -40 to 85 Product type RF FDA Slew rate (Typ) (V/us) 18000 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.15 Total supply voltage (Max) (+5V=5, +/-5V=10) 5 Vn at flatband (Typ) (nV/rtHz) 1.4 Vn at 1 kHz (Typ) (nV/rtHz) 3.5 Vos (offset voltage @ 25 C) (Max) (mV) 1.2 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

Features

  • 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
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Description

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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Technical documentation

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Type Title Date
* Datasheet LMH3401 7-GHz, Ultra-Wideband, Fixed-Gain, Fully-Differential Amplifier datasheet (Rev. A) Dec. 04, 2014
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Application notes ADC32RF45: Amplifier to ADC Interface (Rev. A) Sep. 07, 2016
Technical articles Driving ADCs: Amplifier or balun? Nov. 18, 2014
Technical articles Part 2 - Mitigating common mode noise Nov. 03, 2014
User guides LMH3401EVM Evaluation Module Aug. 26, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$149.00
Description

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 (...)

Features
  • 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
EVALUATION BOARDS Download
document-generic User guide
$899.00
Description

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 (...)

Features
  • Flexible transformer coupled analog input on the LMH6401 path to allow for a variety of sources and frequencies
  • Options for AC or DC coupling, single-ended or differential inputs
  • Easy to use software GUI to configure the ADS54J60, LMH6401 and LMK04828 for a variety of configurations through a USB (...)

Design tools & simulation

SIMULATION MODELS Download
SBOJ020.ZIP (69 KB) - Spice Model
SIMULATION MODELS Download
SBOM909C.TSC (473 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM910C.ZIP (8 KB) - TINA-TI Spice Model

Reference designs

REFERENCE DESIGNS Download
16-Bit 1-GSPS Digitizer Reference Design with AC and DC Coupled Fixed Gain Amplifier
TIDA-00823 — This reference design discusses the use and performance of the Ultra-Wideband, Fixed-gain high-speed amplifier, the LMH3401 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
16-Bit 1-GSPS Digitizer Reference Design with AC and DC Coupled Variable Gain Amplifier
TIDA-00822 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Two Stage Cascaded 8GHz Amplifier Reference Design Board
TIDA-00659 This board cascades two LMH5401 or LMH3401 amplifiers for more gain or more DC common mode shift.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Cascaded LMH5401 and LMH6401 Reference Design
TIDA-00654 A wideband single-ended to differential conversion reference design in both DC- and AC- coupled applications is presented. The design evaluates the performance of the LMH5401 and LMH6401 cascade and offers insight into the design.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
UQFN (RMS) 14 View options

Ordering & quality

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