LMH6643

正在供貨

雙通道、低功耗、130MHz、75mA 軌到軌輸出放大器

可提供此產(chǎn)品的更新版本

功能優(yōu)于所比較器件的普遍直接替代產(chǎn)品
OPA2863 正在供貨 雙路低功耗 110MHz 12V 軌到軌輸入和輸出 (RRIO) 電壓反饋放大器 Lower noise (5.9nV/√Hz), lower offset (1.3 mV), lower offset drift (3.5 μV/C) & lower power consumption (0.7 mA)
OPA2863A 正在供貨 雙通道、高精度、低功耗、105MHz、12V RRIO 電壓反饋放大器 Lower noise (5.9 nV/√Hz), lower offset (95 μV), lower offset drift (0.3 μV/°C) and lower power consumption (0.75 mA)

產(chǎn)品詳情

Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.8 GBW (typ) (MHz) 57 BW at Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/μs) 135 Vn at flatband (typ) (nV√Hz) 17 Vn at 1 kHz (typ) (nV√Hz) 17 Iq per channel (typ) (mA) 2.7 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail In to V-, Out Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 2600000 Offset drift (typ) (μV/°C) 5 Iout (typ) (mA) 115 2nd harmonic (dBc) 80 3rd harmonic (dBc) 65 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.8 GBW (typ) (MHz) 57 BW at Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/μs) 135 Vn at flatband (typ) (nV√Hz) 17 Vn at 1 kHz (typ) (nV√Hz) 17 Iq per channel (typ) (mA) 2.7 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail In to V-, Out Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 2600000 Offset drift (typ) (μV/°C) 5 Iout (typ) (mA) 115 2nd harmonic (dBc) 80 3rd harmonic (dBc) 65 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 29.4 mm2 4.9 x 6 VSSOP (DGK) 8 14.7 mm2 3 x 4.9

    (VS = ±5 V, TA = 25°C,
    RL = 2 k?, AV = +1. Typical Values Unless
    Specified).

  • ?3 dB BW (AV = +1) 130 MHz
  • Supply Voltage Range 2.7 V to 12.8 V
  • Slew Rate, (AV = ?1) 130V/μs(1)
  • Supply Current (no load) 2.7 mA/amp 
  • Output Short Circuit Current +115 mA to 145 mA
  • Linear Output Current ±75 mA
  • Input Common Mode Volt. 0.5 V Beyond V?,
    1 V from V+
  • Output Voltage Swing 40 mV from Rails 
  • Input Voltage Noise (100 kHz) 17nV/√Hz
  • Input Current Noise (100 kHz) 0.9pA/√Hz
  • THD (5 MHz, RL = 2 k?, VO = 2 VPP,
    AV = +2) ?62 dBc
  • Settling Time 68 ns
  • Fully Characterized for 3 V, 5 V, and ±5 V
  • Overdrive Recovery 100 ns
  • Output Short Circuit Protected(2)
  • No Output Phase Reversal with CMVR Exceeded

    (VS = ±5 V, TA = 25°C,
    RL = 2 k?, AV = +1. Typical Values Unless
    Specified).

  • ?3 dB BW (AV = +1) 130 MHz
  • Supply Voltage Range 2.7 V to 12.8 V
  • Slew Rate, (AV = ?1) 130V/μs(1)
  • Supply Current (no load) 2.7 mA/amp 
  • Output Short Circuit Current +115 mA to 145 mA
  • Linear Output Current ±75 mA
  • Input Common Mode Volt. 0.5 V Beyond V?,
    1 V from V+
  • Output Voltage Swing 40 mV from Rails 
  • Input Voltage Noise (100 kHz) 17nV/√Hz
  • Input Current Noise (100 kHz) 0.9pA/√Hz
  • THD (5 MHz, RL = 2 k?, VO = 2 VPP,
    AV = +2) ?62 dBc
  • Settling Time 68 ns
  • Fully Characterized for 3 V, 5 V, and ±5 V
  • Overdrive Recovery 100 ns
  • Output Short Circuit Protected(2)
  • No Output Phase Reversal with CMVR Exceeded

The LMH664X family true single supply voltage feedback amplifiers offer high speed (130 MHz), low distortion (−62 dBc), and exceptionally high output current (approximately 75 mA) at low cost and with reduced power consumption when compared against existing devices with similar performance.

Input common mode voltage range extends to 0.5V below V− and 1 V from V+. Output voltage range extends to within 40 mV of either supply rail, allowing wide dynamic range especially desirable in low voltage applications. The output stage is capable of approximately 75 mA in order to drive heavy loads. Fast output Slew Rate (130 V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40 MHz with a 3 V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications.

Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic (0.1dB gain flatness up the 12 MHz under 150 Ω load and AV = +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads. This along with fast settling time (68ns) and low distortion allows the device to operate well in ADC buffer, and high frequency filter applications as well as other applications.

This device family offers professional quality video performance with low DG (0.01%) and DP (0.01°) characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy loads (150 Ω) and throughout the output voltage range. The LMH664X family is offered in single (LMH6642), dual (LMH6643), and quad (LMH6644) options.

The LMH664X family true single supply voltage feedback amplifiers offer high speed (130 MHz), low distortion (−62 dBc), and exceptionally high output current (approximately 75 mA) at low cost and with reduced power consumption when compared against existing devices with similar performance.

Input common mode voltage range extends to 0.5V below V− and 1 V from V+. Output voltage range extends to within 40 mV of either supply rail, allowing wide dynamic range especially desirable in low voltage applications. The output stage is capable of approximately 75 mA in order to drive heavy loads. Fast output Slew Rate (130 V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40 MHz with a 3 V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications.

Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic (0.1dB gain flatness up the 12 MHz under 150 Ω load and AV = +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads. This along with fast settling time (68ns) and low distortion allows the device to operate well in ADC buffer, and high frequency filter applications as well as other applications.

This device family offers professional quality video performance with low DG (0.01%) and DP (0.01°) characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy loads (150 Ω) and throughout the output voltage range. The LMH664X family is offered in single (LMH6642), dual (LMH6643), and quad (LMH6644) options.
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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 LMH664x Low Power, 130 MHz, 75 mA Rail-to-Rail Output Amplifiers 數(shù)據(jù)表 (Rev. Q) PDF | HTML 2014年 9月 20日
電路設(shè)計 使用高壓輸入驅(qū)動低壓單端 SAR ADC 電路 (Rev. A) PDF | HTML 英語版 (Rev.A) PDF | HTML 2024年 10月 14日
電路設(shè)計 采用緩沖式儀表放大器驅(qū)動高電壓 SAR ADC 的電路 (Rev. A) PDF | HTML 英語版 (Rev.A) PDF | HTML 2024年 10月 14日
電路設(shè)計 用于驅(qū)動 ADC 的高壓至低壓電平轉(zhuǎn)換反相電路 (Rev. A) PDF | HTML 英語版 (Rev.A) PDF | HTML 2024年 10月 3日
應(yīng)用手冊 Reference-Buffer, ADC-Driver, and Transimpedance Applications for OPAx328 PDF | HTML 2022年 11月 19日
電子書 The Signal e-book: 有關(guān)運算放大器設(shè)計主題的博客文章匯編 英語版 2018年 1月 31日
應(yīng)用手冊 ADC Input Protection 2013年 9月 4日
應(yīng)用手冊 AN-1240 Video Transmission Over Twisted Pair Wire (Rev. C) 2013年 5月 1日
應(yīng)用手冊 AN-1244 Photo-Diode Current-to-Voltage Converters (Rev. B) 2013年 5月 1日
應(yīng)用手冊 A Walk Along the Signal Path (High-Speed Signal Path) 2005年 3月 30日
應(yīng)用手冊 Lower System Cost Solution for Transmitting Video 2003年 3月 6日

設(shè)計和開發(fā)

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評估板

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用戶指南: PDF
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仿真模型

LMH6643 PSPICE Model

SNOM136.ZIP (1 KB) - PSpice Model
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計算工具

ANALOG-ENGINEER-CALC — 模擬工程師計算器

模擬工程師計算器旨在加快模擬電路設(shè)計工程師經(jīng)常運用的許多重復(fù)性計算。該基于 PC 的工具提供圖形界面，其中顯示各種常見計算列表，從使用反饋電阻器設(shè)置運算放大器增益到選擇合適的電路設(shè)計元件，以穩(wěn)定模數(shù)轉(zhuǎn)換器 (ADC) 驅(qū)動器緩沖器電路。

除了可用作獨立工具之外，該計算器還能很好地與模擬工程師口袋參考中所述的概念配合使用。

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VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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借助?PSpice for TI 的設(shè)計和仿真環(huán)境及其內(nèi)置的模型庫，您可對復(fù)雜的混合信號設(shè)計進行仿真。創(chuàng)建完整的終端設(shè)備設(shè)計和原型解決方案，然后再進行布局和制造，可縮短產(chǎn)品上市時間并降低開發(fā)成本。?

在?PSpice for TI 設(shè)計和仿真工具中，您可以搜索 TI (...)
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TINA-TI 提供了 SPICE 所有的傳統(tǒng)直流、瞬態(tài)和頻域分析以及更多。TINA 具有廣泛的后處理功能，允許您按照希望的方式設(shè)置結(jié)果的格式。虛擬儀器允許您選擇輸入波形、探針電路節(jié)點電壓和波形。TINA 的原理圖捕獲非常直觀 - 真正的“快速入門”。

TINA-TI 安裝需要大約 500MB。直接安裝，如果想卸載也很容易。我們相信您肯定會愛不釋手。

TINA 是德州儀器 (TI) 專有的 DesignSoft 產(chǎn)品。該免費版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

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用戶指南: PDF
英語版 (Rev.A): PDF
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