OPA2674
- WIDEBAND +12V OPERATION: 220MHz (G = +4)
- UNITY-GAIN STABLE: 250MHz (G = +1)
- HIGH OUTPUT CURRENT: 500mA
- OUTPUT VOLTAGE SWING: 10VPP
- HIGH SLEW RATE: 2000V/µs
- LOW SUPPLY CURRENT: 18mA
- FLEXIBLE POWER CONTROL: SO-14 Only
- OUTPUT CURRENT LIMIT (±800mA)
- APPLICATIONS
- POWER LINE MODEM
- xDSL LINE DRIVERS
- CABLE MODEM DRIVERS
- MATCHED I/Q CHANNEL AMPLIFIERS
- BROADBAND VIDEO LINE DRIVERS
- ARB LINE DRIVERS
- HIGH CAP LOAD DRIVER
All trademarks are the property of their respective owners.
The OPA2674 provides the high output current and low distortion required in emerging xDSL and Power Line Modem driver applications. Operating on a single +12V supply, the OPA2674 consumes a low 9mA/ch quiescent current to deliver a very high 500mA output current. This output current supports even the most demanding ADSL CPE requirements with > 380mA minimum output current (+25°C minimum value) with low harmonic distortion. Differential driver applications deliver < –85dBc distortion at the peak upstream power levels of full rate ADSL. The high 200MHz bandwidth also supports the most demanding VDSL line driver requirements.
Power control features are included in the SO-14 package version to allow system power to be minimized. Two logic control lines allow four quiescent power settings. These include full power, power cutback for short loops, idle state for no signal transmission but line match maintenance, and shutdown for power off with a high impedance output.
Specified on ±6V supplies (to support +12V operation), the OPA2674 will also support a single +5V or dual ±5V supply. Video applications will benefit from a very high output current to drive up to 10 parallel video loads (15Ω) with < 0.1%/0.1° dG/dP nonlinearity.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Dual Wideband High Output Current Operational Amplifier with Current Limit 数据表 (Rev. C) | 2008-8-28 | |||
| 技术文章 | 3 common questions when designing with high-speed amplifiers | PDF | HTML | 2020-7-17 | |||
| 电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | PDF | HTML | 英语版 | PDF | HTML | 2018-1-31 | |
| 用户指南 | DEM-OPA-SO-2A User's Guide (Rev. B) | 2010-4-30 | ||||
| 应用手册 | Wireline Data Transmission and Reception | 2010-1-27 | ||||
| 用户指南 | DEM-OPA-SO-2D User's Guide (Rev. A) | 2006-5-25 | ||||
| 用户指南 | DEM-OPA-MSOP-2A User's Guide (Rev. A) | 2006-5-25 | ||||
| 应用手册 | Noise Analysis for High Speed Op Amps (Rev. A) | 2005-1-17 | ||||
| 应用手册 | Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance | 2004-4-28 | ||||
| 应用手册 | Measuring Board Parasitics in High-Speed Analog Design | 2003-7-7 | ||||
| 应用手册 | Current Feedback Amplifiers: Review, Stability Analysis, and Applications | 2000-11-20 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
DEM-OPA-SO-2A — 采用 SO-8 封装的双路运算放大器评估模块
The DEM-OPA-SO-2A demonstration evaluation module helps designers evaluate the operation and performance of TI dual-channel, high-speed, wideband operational amplifiers. This unpopulated printed-circuit board (PCB) is compatible with products offered in the 8-lead SOIC (D) package.
For more (...)
DEM-OPA-SO-2D — 采用 SO-14 封装的双路运算放大器评估模块
DEM-OPA-SO-2D 演示装置是一款通用的未组装印刷电路板 (PCB)，用于评估采用 SO-14 (DDB) 封装且具有禁用功能的 TI 双路高速运算放大器的运行情况和性能。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运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列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOIC (D) | 14 | Ultra Librarian |