OPA2822
- LOW INPUT NOISE VOLTAGE: 2.0nV/
Hz - HIGH UNITY GAIN BANDWIDTH: 500MHz
- HIGH GAIN BANDWIDTH PRODUCT: 240MHz
- HIGH OUTPUT CURRENT: 90mA
- SINGLE +5V TO +12V OPERATION
- LOW SUPPLY CURRENT: 4.8mA/ch
- APPLICATIONS
- xDSL DIFFERENTIAL LINE RECEIVERS
- HIGH DYNAMIC RANGE ADC DRIVERS
- LOW NOISE PLL INTEGRATORS
- TRANSIMPEDANCE AMPLIFIERS
- PRECISION BASEBAND I/Q AMPLIFIERS
- ACTIVE FILTERS
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The OPA2822 offers very low 2.0nV/Hz input noise in a wideband, unity gain stable, voltage-feedback architecture. Intended for xDSL receiver applications, the OPA2822 also supports this low input noise with exceptionally low harmonic distortion, particularly in differential configurations. Adequate output current is provided to drive the potentially heavy load of a passive filter between this amplifier and the codec. Harmonic distortion for a 2Vpp differential output operating from +5V to +12V supplies is ≤ –100dBc through 1MHz input frequencies. Operating on a low 4.8mA/ch supply current, the OPA2822 can satisfy all xDSL receiver requirements over a wide range of possible supply voltages—from a single +5V condition, to ±5V, on up to a single +12V design.
General-purpose applications on a single +5V supply will benefit from high input and output voltage swing available on this reduced supply voltage. Low-cost precision integrators for PLLs will also benefit from the low voltage noise and offset voltage. Baseband I/Q receiver channels can achieve almost perfect channel match with noise and distortion to support signals through 5MHz with > 14-bit dynamic range.
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, Low-Noise Operational Amplifier datasheet (Rev. E) | 2008/8/28 | |||
| 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 | ||||
| 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-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 | 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-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-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 (...)
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 |
| VSSOP (DGK) | 8 | Ultra Librarian |