OPA863A
- Gain-bandwidth product: 50MHz
- High precision:
- Input offset voltage: 95µV (maximum)
- Offset drift: 1.2µV/°C (maximum)
- Low power:
- Quiescent current: 800µA/ch (typical)
- Supply voltage: 2.7V to 12.6V
- Input voltage noise: 6.3nV/√Hz
- Slew rate: 100V/µs
- Rail-to-rail input and output
- HD2 and HD3:
- –129dBc and –138dBc at 20kHz (2VPP)
- Operating temperature range: –40°C to +125°C
- Additional features:
- Overload power limit
- Output short-circuit protection
The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.
Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V 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 OPAx863A include overload power limiting to limit the increase in IQ 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 | OPAx863A High-Precision, 105MHz, Rail-to-Rail Input/Output Amplifiers datasheet (Rev. G) | PDF | HTML | 2024/12/24 | ||
| Application brief | High Speed Current Sensing for Data Center mCRPS Standards | PDF | HTML | 2026/4/7 | |||
| 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 | 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 | ||||
| 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)。
AMP-PDK-EVM — 放大器性能開發套件評估模組
放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。
AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：
- D (SOIC-8 和 SOIC-14)
- PW (TSSOP-14)
- DGK (VSSOP-8)
- DBV (SOT23-5 和 SOT23-6)
- DCK (SC70-5 和 SC70-6)
DEM-OPA-SOT-1A — 適用於 SOT-23 5 針腳和 6 針腳封裝的單路運算放大器評估模組
DEM-OPA-SOT-1A 是一種展示電路板，用於評估高速、寬頻運算放大器的運作和性能。此未組裝的 PC 電路板與採用小型電晶體 (SOT) DBV 封裝的產品相容。
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 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |