Product details

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 3 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 BW @ Acl (MHz) 370 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 2400 Architecture Fully Differential ADC Driver, Bipolar Vn at flatband (Typ) (nV/rtHz) 6 Iq per channel (Typ) (mA) 12.5 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 5 Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 65 2nd harmonic (dBc) 94 3rd harmonic (dBc) 96 @ MHz 5 GBW (Typ) (MHz) 370 Input bias current (Max) (pA) 10000000 Features CMRR (Typ) (dB) 80 Rating Catalog
Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 3 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 BW @ Acl (MHz) 370 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 2400 Architecture Fully Differential ADC Driver, Bipolar Vn at flatband (Typ) (nV/rtHz) 6 Iq per channel (Typ) (mA) 12.5 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 5 Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 65 2nd harmonic (dBc) 94 3rd harmonic (dBc) 96 @ MHz 5 GBW (Typ) (MHz) 370 Input bias current (Max) (pA) 10000000 Features CMRR (Typ) (dB) 80 Rating Catalog
SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • 370 MHz –3-dB Bandwidth
    (VOUT = 0.5 VPP)
  • 50 MHz 0.1-dB Bandwidth
  • 2400 V/µs Slew Rate
  • 18 ns Settling Time to 0.05%
  • –94/–96 dB HD2/HD3 at 5 MHz
  • 370 MHz –3-dB Bandwidth
    (VOUT = 0.5 VPP)
  • 50 MHz 0.1-dB Bandwidth
  • 2400 V/µs Slew Rate
  • 18 ns Settling Time to 0.05%
  • –94/–96 dB HD2/HD3 at 5 MHz

The LMH6551 device is a high-performance voltage feedback differential amplifier and is part of the LMH integrated circuits family of devices. The LMH6551 has the high speed and low distortion necessary for driving high-performance ADCs as well as the current handling capability to drive signals over balanced transmission lines like CAT 5 data cables. The LMH6551 can handle a wide range of video and data formats.

With external gain set resistors, the LMH6551 can be used at any desired gain. Gain flexibility coupled with high speed makes the LMH6551 suitable for use as an IF amplifier in high-performance communications equipment.

The LMH6551 is available in the space-saving SOIC and VSSOP packages.

The LMH6551 device is a high-performance voltage feedback differential amplifier and is part of the LMH integrated circuits family of devices. The LMH6551 has the high speed and low distortion necessary for driving high-performance ADCs as well as the current handling capability to drive signals over balanced transmission lines like CAT 5 data cables. The LMH6551 can handle a wide range of video and data formats.

With external gain set resistors, the LMH6551 can be used at any desired gain. Gain flexibility coupled with high speed makes the LMH6551 suitable for use as an IF amplifier in high-performance communications equipment.

The LMH6551 is available in the space-saving SOIC and VSSOP packages.

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Technical documentation

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Type Title Date
* Data sheet LMH6551 Differential, High-Speed Op Amp datasheet (Rev. D) PDF | HTML 19 Jan 2015
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016
Technical article Go differential to differentiate your precision design 11 Aug 2016
Technical article How to use a fully differential amplifier as a level shifter 13 Jul 2016
Technical article What you need to know about internal ESD protection on integrated circuits 02 Dec 2015
Application note AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) 01 May 2013
Application note Using High Speed Diff Amp to Drive ADCs (Rev. A) 26 Apr 2013
More literature Featured High Speed Differential Amplifiers 23 Oct 2012
EVM User's guide LMH730154 High Speed Differential Amplifier Evaluation Board 06 May 2012
Analog Design Journal Converting single-ended video to differential video in single-supply systems 16 Sep 2011
White paper Intermediate Frequency (IF) Sampling Receiver Concepts 31 May 2006
Application note Understanding High-Speed Signals, Clocks, and Data Capture 18 Oct 2005
Application note A Walk Along the Signal Path (High-Speed Signal Path) 30 Mar 2005

Design & development

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Evaluation board

LMH730154 — Evaluation Board for High-Speed Single Differential Amplifier in the 8-Pin SOIC Package

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Differential Amplifier that are offered in the 8-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)

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LMH6551 PSPICE Model LMH6551 PSPICE Model

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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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