OPA875
- 700MHz SMALL-SIGNAL BANDWIDTH
(AV = +2) - 425MHz, 4VPP BANDWIDTH
- 0.1dB GAIN FLATNESS to 200MHz
- 4ns CHANNEL SWITCHING TIME
- LOW SWITCHING GLITCH: 40mVPP
- 3100V/µs SLEW RATE
- 0.025%/0.025° DIFFERENTIAL GAIN, PHASE
- HIGH GAIN ACCURACY: 2.0V/V ±0.4%
- APPLICATIONS
- RGB SWITCHING
- LCD PROJECTOR INPUT SELECT
- WORKSTATION GRAPHICS
- ADC INPUT MUX
- DROP-IN UPGRADE TO LT1675-1
All other trademarks are the property of their respective owners.
The OPA875 offers a very wideband, single-channel 2:1 multiplexer in an SO-8 or a small MSOP-8 package. Using only 11mA, the OPA875 provides a gain of +2 video amplifier channel with greater than 425MHz large-signal bandwidth (4VPP). Gain accuracy and switching glitch are improved over earlier solutions using a new input stage switching approach. This technique uses current steering as the input switch while maintaining an overall closed-loop design. With greater than 700MHz small-signal bandwidth at a gain of 2, the OPA875 gives a typical 0.1dB gain flatness to greater than 200MHz.
System power may be reduced using the chip enable feature for the OPA875. Taking the chip enable line high powers down the OPA875 to less than 300µA total supply current. Muxing multiple OPA875 outputs together, then using the chip enable to select which channels are active, increases the number of possible inputs.
Where three channels are required, consider using the OPA3875 for the same level of performance.
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 | Single 2:1 High-Speed Video Multiplexer 数据表 (Rev. C) | 2008-8-28 | |||
| 用户指南 | DEM-OPA-MSOP-1B Demonstration Fixture (Rev. C) | 2015-4-28 | ||||
| 用户指南 | DEM-OPA-SO-1D Demonstration Fixture (Rev. A) | 2009-4-3 | ||||
| 用户指南 | DEM-OPA-SO-1E User's Guide (Rev. A) | 2009-4-3 |
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-MSOP-1B — DEM-OPA-MSOP-1B 评估模块
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 |
| VSSOP (DGK) | 8 | Ultra Librarian |