OPA842
- UNITY-GAIN BANDWIDTH: 400MHz
- GAIN-BANDWIDTH PRODUCT: 200MHz
- LOW INPUT VOLTAGE NOISE: 2.6nV/√Hz
- VERY LOW DISTORTION: –93dBc (5MHz)
- HIGH OPEN-LOOP GAIN: 110dB
- FAST 12-BIT SETTLING: 22ns (0.01%)
- LOW DC VOLTAGE OFFSET: 300µV Typical
- PROFESSIONAL LEVEL DIFF GAIN/PHASE ERROR: 0.003%/0.008°
The OPA842 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using unity-gain stable, voltage-feedback architecture with two internal gain stages, the OPA842 achieves exceptionally low harmonic distortion over a wide frequency range. The classic differential input provides all the familiar benefits of precision op amps, such as bias current cancellation and very low inverting current noise compared with wideband current differential gain/phase performance, low-voltage noise, and high output current drive make the OPA842 ideal for most high dynamic range applications.
Unity-gain stability makes the OPA842 particularly suitable for low-gain differential amplifiers, transimpedance amplifiers, gain of +2 video line drivers, wideband integrators, and low-distortion analog-to-digital converter (ADC) buffers. Where higher gain or even lower harmonic distortion is required, consider the OPA843—a higher-gain bandwidth and lower-noise version of the OPA842.
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 | Wideband Low Distortion Unity-Gain Stable Voltage-Feedback Op Amp datasheet (Rev. D) | 2010/9/28 | |||
| 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 | Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) | 2015/5/8 | ||||
| 使用指南 | DEM-OPA-SO-1A User's Guide (Rev. B) | 2012/4/12 | ||||
| 使用指南 | DEM-OPA-SOT-1A User's Guide (Rev. B) | 2012/4/12 | ||||
| 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.
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 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |