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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Wideband Low Distortion Unity-Gain Stable Voltage-Feedback Op Amp 数据表 (Rev. D) | 2010-9-28 | |||
| 电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | PDF | HTML | 英语版 | PDF | HTML | 2018-1-31 | |
| 应用手册 | RLC Filter Design for ADC Interface Applications (Rev. A) | 2015-5-13 | ||||
| 应用手册 | Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) | 2015-5-8 | ||||
| 用户指南 | DEM-OPA-SO-1A User's Guide (Rev. B) | 2012-4-12 | ||||
| 用户指南 | DEM-OPA-SOT-1A User's Guide (Rev. B) | 2012-4-12 | ||||
| 应用手册 | Noise Analysis for High Speed Op Amps (Rev. A) | 2005-1-17 | ||||
| 应用手册 | ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers | 2004-4-22 | ||||
| 应用手册 | Measuring Board Parasitics in High-Speed Analog Design | 2003-7-7 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
DEM-OPA-SO-1A — 采用 SO-8 封装的单路运算放大器评估模块
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 — 采用 5 引脚和 6 引脚 SOT-23 封装的单路运算放大器评估模块
DEM-OPA-SOT-1A 是一款用于评估高速高带宽运算放大器运行情况和性能的演示板。这款未组装的 PC 板与采用 small-outline transistor (SOT) DBV 封装的产品兼容。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |