OPA2863
- Wide-bandwidth
- Unity-gain bandwidth: 110-MHz (A V= 1 V/V)
- Gain-bandwidth product: 50-MHz
- Low power
- Quiescent current: 700-µA/ch (typical)
- Power down mode: 1.5-µA (maximum, V S= 3 V)
- Supply voltage: 2.7-V to 12.6-V
- Input voltage noise: 5.9-nV/√Hz
- Slew rate: 105-V/µs
- Rail-to-rail input and output
- HD 2/HD 3: –129 dBc/–138 dBc at 20 kHz (2-V PP)
- Operating temperature range: –40°C to +125°C
- Additional features:
- Overload power limit
- Output short-circuit protection
- High-precision version: OPAx863A
The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers designed to operate over a power-supply range of 2.7 V to 12.6 V. Consuming only 700 µA per channel, the OPAx863 offers a gain-bandwidth product of 50 MHz, slew rate of 105 V/µs with a voltage noise density of 5.9 nV/√Hz.
The rail-to-rail input stage with 2.7-V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well-matched for gain-bandwidth product and noise across the full input common‑mode voltage range, enabling excellent performance with wide-input dynamic range. The OPAx863 feature a power-down (PD) mode with a PD quiescent current (I Q) of 1.5-µA (maximum) and a turn-on or turn-off time within 6.5-µs using a 3-V supply.
The OPAx863 includes overload power limiting to limit the increase in I Q with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.
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 | OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input/Output Voltage-Feedback Op Amps datasheet (Rev. J) | PDF | HTML | 2023/6/14 | ||
| Circuit design | Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) | PDF | HTML | 2024/9/20 | |||
| Circuit design | Inverting circuit for high-to-low voltage level translation to drive ADC (Rev. A) | PDF | HTML | 2024/9/19 | |||
| Circuit design | Driving a low-voltage single-ended SAR ADC circuit with high-voltage input (Rev. A) | PDF | HTML | 2024/9/19 | |||
| Application brief | How to Design MFB Filters with Amplifier Bandwidth Limitations | PDF | HTML | 2024/1/4 | |||
| Application brief | Higher accuracy using an external amplifier in ultrasonic flow measurement | 2019/2/5 | ||||
| 設計指南 | High-Speed, High-Side Current Sense Reference Design | 2017/7/19 | ||||
| 應用說明 | ADC Input Protection | 2013/9/4 | ||||
| 使用指南 | DEM-OPA-MSOP-2A User's Guide (Rev. A) | 2006/5/25 | ||||
| 應用說明 | A Walk Along the Signal Path (High-Speed Signal Path) | 2005/3/30 |
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-DSN-EVM — 適用於採用 DSN 封裝之雙路運算放大器的評估模組
DEM-OPA-DSN-EVM 評估模組 (EVM) 是一種展示固定裝置，可協助設計人員評估 Texas Instruments Incorporated 高速、寬頻運算放大器的運作和性能。此未組裝 PC 基板相容於以 10 針腳 SON (DSN) 封裝提供的雙通道放大器產品。EVM 的設計旨在配合多種放大器配置，提供最大彈性及易用性。
DEM-OPA-MSOP-2A — 適用於 MSOP-8 封裝的二路運算放大器評估模組
For more information on these types of op amps, (...)
DEM-OPA-RUN-EVM — 適用於 RUN 封裝雙通道運算放大器的未組裝評估模組
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 (...)
OPA2863DGKEVM — 適用於採用 DGK 封裝的雙路低功耗 12-V RRIO 電壓回饋放大器的 OPA2863 評估模組
OPA2863DGKEVM 是一款採用 DGK (VSSOP-8) 封裝之適用於雙通道 OPA2863 放大器的評估模組 (EVM)。OPA2863 為一低功耗、均一增益穩定、軌對軌輸入與輸出 (RRIO)、電壓回饋運算放大器，其設計旨在透過 2.7 V 至 12.6 V 電源供應範圍運作。OPA2863DGKEVM 的設計可快速且輕鬆展示放大器的功能性與多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 配置為可輕鬆連接一般 50-Ω 實驗室設備的輸入與輸出端。每個放大器都配置為單端輸入，在裝置輸出端具有 1 V/V 的非反相訊號增益。OPA2863DGKEVM (...)
TINA-TI — 基於 SPICE 的類比模擬程式
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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 |
| WQFN (RUN) | 10 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |