公开(公告)号：US20230317323A1

公开(公告)日：2023-10-05

申请号：US18193387

申请日：2023-03-30

申请人： STMicroelectronics International N.V.

发明人： Akshat KUMAR ,  Prashutosh GUPTA

IPC分类号： H01C10/32 ,  H01C10/16 ,  G05B19/042

CPC分类号： H01C10/32 ,  H01C10/16 ,  G05B19/0423

摘要： An electronic device having a digitally controlled resistor is provided. The digitally controlled resistor includes various switch-resistor segments between voltage nodes. In one embodiment, the switch-resistor segment may include a resistor and a switch coupled parallel to the resistor. In another embodiment, the switch-resistor segment may include a resistor, a complement switch coupled in series with the resistor, and a switch coupled parallel to the resistor and the complement switch. Each switch included in the switch-resistor segment operates based on digital bits. Based on the logic value (either ‘0’ or ‘1’) assigned, the switches turn ON (when logic value is ‘1’) and OFF (when logic value is ‘0’). In some embodiments, the switches and the resistor included in the switch-transistor segment are arranged in a symmetrical manner between voltage nodes.