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.
技術文件
| 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 | Dual Wideband High Output Current Operational Amplifier with Current Limit datasheet (Rev. C) | 2008/8/28 | |||
| 技術文章 | 3 common questions when designing with high-speed amplifiers | PDF | HTML | 2020/7/17 | |||
| 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 | DEM-OPA-SO-2A User's Guide (Rev. B) | 2010/4/30 | ||||
| 應用說明 | Wireline Data Transmission and Reception | 2010/1/27 | ||||
| 使用指南 | DEM-OPA-SO-2D User's Guide (Rev. A) | 2006/5/25 | ||||
| 使用指南 | DEM-OPA-MSOP-2A User's Guide (Rev. A) | 2006/5/25 | ||||
| 應用說明 | Noise Analysis for High Speed Op Amps (Rev. A) | 2005/1/17 | ||||
| 應用說明 | Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance | 2004/4/28 | ||||
| 應用說明 | Measuring Board Parasitics in High-Speed Analog Design | 2003/7/7 | ||||
| 應用說明 | Current Feedback Amplifiers: Review, Stability Analysis, and Applications | 2000/11/20 |
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)。
DEM-OPA-SO-2A — 適用於 SO-8 封裝的二路運算放大器評估模組
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 — 適用於 SO-14 封裝的二路運算放大器評估模組
DEM-OPA-SO-2D 展示裝置是一款通用、未組裝的印刷電路板 (PCB)，用於評估 TI 採用 SO-14 (DDB) 封裝、具有停用功能的雙高速運算放大器的運作和性能。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOIC (D) | 14 | Ultra Librarian |