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参数

Architecture Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 12.8 GBW (Typ) (MHz) 57 BW @ Acl (MHz) 130 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 135 Vn at flatband (Typ) (nV/rtHz) 17 Vn at 1 kHz (Typ) (nV/rtHz) 17 Iq per channel (Typ) (mA) 2.7 Vos (offset voltage @ 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) (uV/C) 5 Output current (Typ) (mA) 115 2nd harmonic (dBc) 80 3rd harmonic (dBc) 65 @ MHz 1 open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

封装|引脚|尺寸

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

特性

    (VS = ±5 V, TA = 25°C,
    RL = 2 kΩ, 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 kΩ, 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
open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

描述

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.

open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)
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技术文档

= 特色
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类型 标题 下载最新的英文版本 发布
* 数据表 LMH664x Low Power, 130 MHz, 75 mA Rail-to-Rail Output Amplifiers 数据表 2014年 9月 20日
技术文章 How to reduce distortion in high-voltage, high-frequency signal generation for AWGs 2018年 10月 30日
技术文章 What are the advantages of using JFET-input amplifiers in high-speed applications? 2018年 6月 18日
技术文章 How to lay out a PCB for high-performance, low-side current-sensing designs 2018年 2月 6日
解决方案指南 The Signal e-book: A compendium of blog posts on op amp design topics. 下载英文版本 2018年 1月 31日
技术文章 Low-side current sensing for high-performance cost-sensitive applications 2018年 1月 22日
应用手册 AN-1240 Video Transmission Over Twisted Pair Wire 2013年 5月 1日
应用手册 AN-1244 Photo-Diode Current-to-Voltage Converters 2013年 5月 1日
应用手册 Lower System Cost Solution for Transmitting Video 2003年 3月 6日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$10.00
说明

National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp 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 configuration (...)

特性
  • Accommodates various high-speed Op Amp
  • Allows quick and easy evaluation
  • Serves as reference design to aid in high-speed PCB layout
  • Utilizes surface-mount components

 

评估板 下载
document-generic 用户指南
$10.00
说明

National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 8-Pin MSOP package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration (...)

特性
  • Accommodates various high-speed Op Amp
  • Allows quick and easy evaluation
  • Serves as reference design to aid in high-speed PCB layout
  • Utilizes surface-mount components

 

设计工具和仿真

仿真模型 下载
SNOM136.ZIP (1 KB) - PSpice Model
仿真工具 下载
document-generic 用户指南 document-generic 下载英文版本 (Rev.A)
计算工具 下载
模拟工程师计算器
ANALOG-ENGINEER-CALC — 模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。
特性
  • 通过模数转换器 (ADC) 和数模转换器 (DAC) 加快电路设计
    • 噪声计算
    • 常见单位转换
  • 解决常见的放大器电路设计问题
    • 使用标准电阻器进行增益选择
    • 滤波器配置
    • 常见放大器配置的总噪声
  • 执行 PCB 寄生计算(例如 R、L 和 C)
  • 查找常见传感器的传感器输出值(例如 RTD、热电偶)
  • 解决常见无源电路问题(例如使用无源组件的分压器)
计算工具 下载
分压器确定一组分压电阻
VOLT-DIVIDER-CALC 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. This calculator can also be used to design non-inverting attentuation circuits.

(...)

CAD/CAE 符号

封装 引脚 下载
SOIC (D) 8 视图选项
VSSOP (DGK) 8 视图选项

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