AD7621ASTZ by Analog Devices Inc.(ADI) Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。AD7621ASTZ Price reference $ 55.660000。AD7621ASTZ - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AD7621ASTZ Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial