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LMH6554

現行

2.8 GHz 超線性全差動放大器

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產品規格表

LMH6554

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 2800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6200 Architecture Bipolar, Current FB, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 0.9 Iq per channel (typ) (mA) 52 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 3 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 150 2nd harmonic (dBc) 68 3rd harmonic (dBc) 70 Frequency of harmonic distortion measurement (MHz) 250 GBW (typ) (MHz) 2500 Input bias current (max) (pA) 8000000 Features Shutdown CMRR (typ) (dB) 83 Rating Catalog
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 2800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6200 Architecture Bipolar, Current FB, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 0.9 Iq per channel (typ) (mA) 52 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 3 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 150 2nd harmonic (dBc) 68 3rd harmonic (dBc) 70 Frequency of harmonic distortion measurement (MHz) 250 GBW (typ) (MHz) 2500 Input bias current (max) (pA) 8000000 Features Shutdown CMRR (typ) (dB) 83 Rating Catalog
UQFN (NHJ) 14 6.25 mm² (2.5 mm × 2.5 mm)
  • 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
  • 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

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 2.8GHz 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 2V 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.

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 2.8GHz 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 2V 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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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LMH6554 2.8-GHz Ultra Linear Fully Differential Amplifier datasheet (Rev. Q) PDF | HTML 2026/3/11
Application brief Why Use an FDA to Drive an ADC? PDF | HTML 2026/1/8
Application brief Active Filter Design for Differential ADCs (Rev. A) PDF | HTML 2025/10/8
Circuit design Single-ended input to differential output circuit using a fully-differential amp (Rev. A) PDF | HTML 2024/9/25
電子書 Engineer's Guide to High-Speed Amplifiers PDF | HTML 2023/10/18
應用說明 Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs 2018/6/14
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
使用指南 LMH6554LE-EVAL High Speed Differential Amplifier Evaluation Board (Rev. C) 2013/5/1
應用說明 AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) 2013/5/1
應用說明 AN-2177 Using the LMH6554 as a ADC Driver (Rev. A) 2013/4/26
應用說明 Using High Speed Diff Amp to Drive ADCs (Rev. A) 2013/4/26
更多文件說明 Featured High Speed Differential Amplifiers 2012/10/23
類比設計期刊 Converting single-ended video to differential video in single-supply systems 2011/9/16
類比設計期刊 Using single-supply fully diff. amps with neg. input voltages to drive ADCs 2010/11/15
應用說明 A Walk Along the Signal Path (High-Speed Signal Path) 2005/3/30

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LMH6554LE-EVAL — 適用於 LMH6554 的評估板

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 aid (...)

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模擬型號

LMH6554 ADS Model

SNOJ010.ZIP (44 KB) - Spice 模型
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模擬型號

LMH6554 PSpice Model (Rev. A)

SNOM157A.ZIP (47 KB) - PSpice 模型
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計算工具

SBOR022 — TI FDA Calculator

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參考設計

TIDA-00092 — 將 LMH6554 最佳化以驅動高速 ADC

此參考設計展示高速放大器 LMH6554 的能力，可執行單端至差動轉換，以驅動高速類比轉數位轉換器 (ADC)，同時維持出色的雜訊和失真性能。連接至 ADS4449 四路、250MSPS、14 位元 ADC 時，會顯示 AC 和 DC 耦合應用的性能與輸入頻率的關係。此設計討論並測量了共模電壓、電源供應器和介面的不同選項，可滿足各種應用的需求。其中會顯示抗混疊濾波器範例及其提供的性能改進。

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參考設計

TIDA-00093 — 最佳化 THS4509 以驅動高速 ADC 參考設計

此參考設計展示高速放大器 THS4509 的能力，可執行單端至差動轉換，以驅動高速類比轉數位轉換器 (ADC)，同時維持出色的雜訊和失真性能。連接至 ADS4449 四路、250MSPS、14 位元 ADC 時，會顯示 AC 和 DC 耦合應用的性能與輸入頻率的關係。此設計討論並測量了共模電壓、電源供應器和介面的不同選項，可滿足各種應用的需求。其中會顯示抗混疊濾波器範例及其提供的性能改進。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
UQFN (NHJ) 14 Ultra Librarian
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