OPA698
- High linearity near limiting
- Fast recovery from overdrive: 1ns
- Limiting voltage accuracy: ±5mV
- –3db bandwidth (g = +1): 650MHz
- Gain bandwidth product: 300MHz
- Slew rate: 1800V/µs
- ±5V and +5V supply operation
- High-gain version available: OPA699
The OPA698 is a wide-band, unity-gain stable voltage-feedback op amp that offers bipolar output voltage limiting. Two buffered limiting voltages take control of the output when attempting to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±5mV.
The op amp operates linearly to within 20mV of the output limit voltages. The combination of a narrow nonlinear range and the low limiting offset allows the limiting voltages to be set within 100mV of the desired linear output range. A fast 1ns recovery from limiting provides overdrive signals that are transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain, and allows the OPA698 to be used in all standard op-amp applications.
Nonlinear analog signal processing benefits from the ability of the OPA698 to sharply transition from linear operation to output limiting. The quick recovery time supports high-speed applications.
The OPA698 is available in an industry-standard pin-out SOIC-8 package. For higher gain, or transimpedance applications that require output limiting with fast recovery, consider the OPA699.
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 | OPA698 Unity-Gain Stable, Wideband Voltage Limiting Amplifier datasheet (Rev. E) | PDF | HTML | 2025/4/10 | ||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 應用說明 | RLC Filter Design for ADC Interface Applications (Rev. A) | 2015/5/13 | ||||
| 應用說明 | ADC Input Protection | 2013/9/4 | ||||
| 應用說明 | Video Designs Using High-Speed Amplifiers (Rev. A) | 2005/2/3 | ||||
| 應用說明 | Noise Analysis for High Speed Op Amps (Rev. A) | 2005/1/17 | ||||
| 應用說明 | ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers | 2004/4/22 | ||||
| 應用說明 | Measuring Board Parasitics in High-Speed Analog Design | 2003/7/7 |
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-1A — 適用於 SO-8 封裝的單路運算放大器評估模組
The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.
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 |