OPA129U by TI Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。OPA129U Price reference $ 8.000000。OPA129U - 。You can download OPA129U Chinese information、Pin map、DatasheetData sheet function specification,In the information OPA129U Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial