OPA361
- EXCELLENT VIDEO PERFORMANCE
- INTERNAL GAIN: 5.2V/V
- SUPPORTS TV-DETECTION
- COMPATIBLE WITH OMAP242x and DAVINCI™ PROCESSORS
- 2-POLE RECONSTRUCTION FILTER
- INPUT RANGE INCLUDES GROUND
- DC-Coupled Input
- INTEGRATED LEVEL SHIFTER
- DC-Coupled Output(1)
- No Output Capacitors Needed
- RAIL-TO-RAIL OUTPUT
- LOW QUIESCENT CURRENT: 5.3mA
- SHUTDOWN CURRENT: 1.5µA
- SINGLE-SUPPLY: 2.5V to 3.3V
- SC70-6 PACKAGE: 2.0mm x 2.1mm
- RoHS COMPLIANT
- APPLICATIONS
- CAMERA PHONES
(1) Internal circuitry avoids output saturation, even with 0V sync tip
level at the input video signal.
DAVINCI is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.
The OPA361 high-speed amplifier is optimized for 3V portable video applications. It is specifically designed to be compatible with the video encoders embedded in Texas Instruments’ OMAP2420 and DaVinci processors or other application processors with 0.5VPP video output. The input common-mode range includes GND, which allows a video-DAC (digital-to-analog converter) to be DC-coupled to the OPA361. The TV-detection feature simplifies the end-user interface significantly by facilitating the automatic start/stop of video transmission.
The output swings within 5mV of GND and 250mV to V+ with a standard back-terminated video load (150
). An internal level shift circuit prevents the output from saturating with 0V input, thus preventing sync-pulse clipping in common video circuits. Therefore, the OPA361 is ideally suited for DC-coupling to the video load.
The OPA361 has been optimized for space-sensitive applications by integrating internal gain setting resistors (G = 5.2V/V) and a 2-pole video-DAC reconstruction filter.
In shutdown mode, the quiescent current is reduced to < 1.5µA, dramatically reducing power consumption and prolonging battery life.
The OPA361 is available in the tiny 2mm x 2.1mm SC70-6 package.
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 | 3V Video Amplifier with Internal Gain and Filter in SC70 数据表 (Rev. A) | 2006-2-1 | |||
| 应用手册 | OPA361 and TV Detection | 2008-6-29 |
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）。
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 |
|---|---|---|
| SOT-SC70 (DCK) | 6 | Ultra Librarian |