OP400HPZ by Analog Devices(ADI) Design and production,in Xiongsheng Micro Technology (Hong Kong) Co., Ltd. Spot sales,And can pass Xiongsheng Micro Technology (Hong Kong) Co., Ltd. Purchasing。OP400HPZ Price reference $ 18.252800。OP400HPZ - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information OP400HPZ Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial