LMH6554

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2.8 GHz Ultra Linear Fully Differential Amplifier

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Product details

Parameters

2nd harmonic (dBc) 68 3rd harmonic (dBc) 70 @ MHz 250 Acl, min spec gain (V/V) 1 Architecture Fully Differential ADC Driver BW @ Acl (MHz) 2800 Features Shutdown GBW (Typ) (MHz) 2500 Number of channels (#) 1 Operating temperature range (C) -40 to 125 Product type RF FDA Slew rate (Typ) (V/us) 6200 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 Vn at flatband (Typ) (nV/rtHz) 0.9 Vn at 1 kHz (Typ) (nV/rtHz) 0.9 Vos (offset voltage @ 25 C) (Max) (mV) 3 open-in-new Find other RF FDAs

Package | Pins | Size

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

Features

  • Small-Signal Bandwidth 2.8 GHz
  • 2 VPP Large-Signal Bandwidth 1.8 GHz
  • 0.1 dB Gain Flatness 830 MHz
  • OIP3 at 150 MHz 46.5 dBm
  • HD2/HD3 at 75 MHz –96 / –97 dBc
  • Input Noise Voltage 0.9 nV/√Hz
  • Input Noise Current 11 pA/√Hz
  • Slew Rate 6200 V/µs
  • Power 260 mW
  • Typical Supply Current 52 mA
  • 14-Lead UQFN Package
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Description

The LMH6554 device is a high-performance fully differential amplifier designed to provide the exceptional signal fidelity and wide large-signal bandwidth necessary for driving 8- to 16-bit high-speed data acquisition systems. Using TI’s proprietary differential current mode input stage architecture, the LMH6554 has unity gain, small-signal bandwidth of 2.8 GHz and allows operation at gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance.

The low-impedance differential output of the device is designed to drive ADC inputs and any intermediate filter stage. The LMH6554 delivers 16-bit linearity up to 75 MHz when driving 2-V peak-to-peak into loads as low as 200 Ω.

The LMH6554 is fabricated in TI’s advanced complementary BiCMOS process and is available in a space-saving 14-lead UQFN package for higher performance.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet LMH6554 2.8-GHz Ultra Linear Fully Differential Amplifier datasheet (Rev. P) Jan. 14, 2015
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles What you always wanted to know about TINA-TI but were afraid to ask! (Part 4) May 30, 2014
Technical articles Is it time to move beyond FR4? Feb. 14, 2014
Technical articles Being negative can still be positive May 07, 2013
Application notes AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) May 01, 2013
User guides LMH6554LE-EVAL High Speed Differential Amplifier Evaluation Board (Rev. C) May 01, 2013
Application notes AN-2177 Using the LMH6554 as a ADC Driver (Rev. A) Apr. 26, 2013
Application notes Using High Speed Diff Amp to Drive ADCs (Rev. A) Apr. 26, 2013
More literature Featured High Speed Differential Amplifiers Oct. 23, 2012
Application notes Converting single-ended video to differential video in single-supply systems Sep. 16, 2011
Application notes A Walk Along the Signal Path (High-Speed Signal Path) Mar. 30, 2005

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description

The LMH6554LE−EVAL evaluation board is designed to aid in the characterization of TI`s LMH6554 fully differential amplifier in an 14 lead LLP package. The LMH6554 is part of the LMH® high speed amplifier family. Use the evaluation board as a guide for high frequency layout and as a tool to (...)

Design tools & simulation

SIMULATION MODELS Download
SNOJ010.ZIP (44 KB) - Spice Model
SIMULATION MODELS Download
SNOM157.ZIP (1 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Optimizing THS4509 to Drive High Speed ADCs Reference Design
TIDA-00093 This reference design shows the ability of the high-speed amplifier, THS4509 to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Optimizing LMH6554 to Drive High Speed ADCs
TIDA-00092 This reference design shows the ability of the high-speed amplifier, LMH6554, to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
UQFN (NHJ) 14 View options

Ordering & quality

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