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参数

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 GBW (Typ) (MHz) 4000 BW @ Acl (MHz) 900 Acl, min spec gain (V/V) 4 Slew rate (Typ) (V/us) 1100 Vn at flatband (Typ) (nV/rtHz) 0.69 Vn at 1 kHz (Typ) (nV/rtHz) 0.69 Iq per channel (Typ) (mA) 15.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.78 Rail-to-rail No Features Shutdown, Decompensated Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 87 Input bias current (Max) (pA) 23000 Offset drift (Typ) (uV/C) 0.45 Output current (Typ) (mA) 250 2nd harmonic (dBc) 88 3rd harmonic (dBc) 74 @ MHz 1 open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

封装|引脚|尺寸

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (NGQ) 8 9 mm² 3 x 3 open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

特性

  • Specified for VS = 5 V, RL = 100 Ω, AV = 10V/V
    WSON-8 Package, unless Specified. –3dB
    Bandwidth 900 MHz
  • Input Voltage Noise 0.69 nV/√Hz
  • Input Offset Voltage Max. Over Temperature
    ±0.8 mV
  • Slew Rate 1600 V/ µs
  • HD2 @ f = 1 MHz, 2VPP −90 dBc
  • HD3 @ f = 1 MHz, 2VPP −94 dBc
  • Supply Voltage Range 2.7 V to 5.5 V
  • Typical Supply Current 15.5 mA
  • Selectable Min. Gain ≥4 or ≥10 V/V
  • Enable Time: 75 ns
  • Output Current ±250 mA
  • WSON-8 and SOT-23-5 Packages
open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)

描述

The LMH6629 is a high-speed, ultra-low noise amplifier designed for applications requiring wide bandwidth with high gain and low noise such as in communication, test and measurement, optical and ultrasound systems.

The LMH6629 operates on 2.7-V to 5.5-V supply with an input common mode range that extends below ground and outputs that swing to within 0.8 V of the rails for ease of use in single supply applications. Heavy loads up to ±250 mA can be driven by high-frequency large signals with the LMH6629’s –3dB bandwidth of 900 MHz and 1600 V/µs slew rate. The LMH6629 (WSON-8 package only) has user-selectable internal compensation for minimum gains of 4 or 10 controlled by pulling the COMP pin low or high, thereby avoiding the need for external compensation capacitors required in competitive devices. Compensation for the SOT-23-5 package is internally set for a minimum stable gain of 10 V/V. The WSON-8 package also provides the power-down enable/disable feature.

The low-input noise (0.69 nV/√Hz and 2.6 pA/√Hz), low distortion (HD2/HD3 = −90 dBc/−94 dBc) and ultra-low DC errors (800 µV VOS maximum over temperature, ±0.45 µV/°C drift) allow precision operation in both ac- and dc-coupled applications.

The LMH6629 is fabricated in Texas Instruments’ proprietary SiGe process and is available in a 3 mm × 3 mm 8-pin WSON package as well as the SOT-23-5 package.

open-in-new 查找其它 高速 运算放大器 (GBW>=50MHz)
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open-in-new 产品比较
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LMH6624 正在供货 单/双路超低噪声宽带运算放大器 For higher supply (12V), higher bandwidth (1.5 GHz), and gains>10V/V see LMH6624

技术文档

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
$149.00
说明

The LMH6629 evaluation board is designed to aid in the characterization of National Semiconductors High Speed LMH6629 Low Noise Operational Amplifier. Use the evaluation board as a guide for high frequency layout and as a tool to aid in device testing and characterization.

评估板 下载
document-generic 用户指南
$25.00
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 5-/6-Pin SOT-23 package. This 4 layer board is designed to improve speed and reduce harmonic distortion by careful placement and routing of components and (...)

特性
  • Maximizes attainable speed and minimizes distortion products
  • 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

NOTE: IC samples are not shipped with the Evaluation PCB, but may be requested (...)

软件开发

支持软件 下载
放大器产品 SelGuide 软件
OPAMPS-SELGUIDE Selguide is a software tool designed to guide the user in selecting our Operational Amplifier, Buffer and Comparator products by enabling the user to enter in a few key parameters and have a list of devices meeting those parameters returned to them.

Included in the results is a summary table of key (...)

设计工具和仿真

仿真模型 下载
SNOM133.ZIP (3 KB) - PSpice Model
仿真模型 下载
SNOM339.ZIP (8 KB) - TINA-TI Spice Model
仿真模型 下载
SNOM340.TSC (34 KB) - TINA-TI Reference Design
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.

(...)

参考设计

参考设计 下载
使用 8 通道模拟前端的声纳接收器路径子系统参考设计
TIDA-00419 TIDA-00419 TI 参考设计演示了使用集成模拟前端 (AFE) AFE5809 的 SONAR 接收路径子系统。AFE5809 具有 8 个模拟信号调节 (LNA+VCAT+PGA) 和数字处理(ADC + 数字解调器)通道,它为高端 SONAR 系统带来高层次的系统接收路径集成并支持高性能回声定位成像。此参考设计演示该 SONAR 子系统时使用了基于 AFE5809EVM 修改的原理图。为了获取此设计所包含的测试数据,此设计将完整的 AFE5809EVM 与 TSW1400EVM FPGA 采集卡及其各自的软件 GUI 相结合,以便仿真可进行高性能测量的完整接收链解决方案。
document-generic 原理图 document-generic 用户指南
参考设计 下载
高增益多级放大器参考设计
TIDA-00066 该参考设计采用了 LMH6629 和 OPA684 运算放大器,可解决在开发极高增益、多级放大器电路过程中遇到的难题和限制条件。该设计受全面应用报告(包括理论、仿真、电路板设计和评估)支持,可轻松针对给定应用进行调整。
document-generic 原理图 document-generic 用户指南

CAD/CAE 符号

封装 引脚 下载
SOT-23 (DBV) 5 视图选项
WSON (NGQ) 8 视图选项

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