AD977BR 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。AD977BR Price reference $ 57.027140。AD977BR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AD977BR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial