公开(公告)号：EP4142158A1

公开(公告)日：2023-03-01

申请号：EP22192003.6

申请日：2022-08-24

申请人： Analog Devices International Unlimited Company

发明人： PUCHALT, Gerard ,  MEDINA SÁNCHEZ CASTRO, Italo Carlos ,  BONACHE MARTINEZ, Jesús

IPC分类号： H03M1/06 ,  H03M1/78 ,  H03F1/02 ,  H03F3/187 ,  H03F3/347 ,  H03F3/45

摘要： Techniques for interpolating two voltages without loading them and without requiring significant power or additional area are described. The techniques include specific topologies for the buffering amplifiers that offer accuracy by cancelling systematic error sources without relying on high gain, thus simplifying the frequency compensation, and reducing power consumption. This can be achieved by biasing the amplifiers from the load current by an innovative feedback structure, which can remove the need for high impedance nodes inside the amplifiers.