公开(公告)号：US12081182B2

公开(公告)日：2024-09-03

申请号：US18049831

申请日：2022-10-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ankit Khanna ,  Dimitar Trifonov ,  Partha Basu ,  Chase Puglisi

IPC: G11C7/06 ,  H02P23/14 ,  H03F3/45 ,  H03K3/037 ,  H03K19/20

CPC classification number: H03F3/45475 ,  G11C7/06 ,  H02P23/14 ,  H03K3/037 ,  H03K19/20 ,  H03F2200/462 ,  H03F2200/474

Abstract: A current sense amplifier includes a first amplifier stage, a second amplifier stage, a switch, and a common-mode transient detector. The first amplifier stage has a first amplifier output, a second amplifier output, a first amplifier input, and a second amplifier input. The second amplifier stage has a third amplifier input coupled to the first amplifier output, and a fourth amplifier input coupled to the second amplifier output. The switch has a switch control input, a first switch terminal coupled to the third amplifier input, and a second switch terminal coupled to the fourth amplifier input. The common-mode transient detector circuit has a detector output, a first detector input and a second detector input. The detector output is coupled to the switch control input. The first detector input is coupled to the first amplifier input. The second detector input is coupled to the second amplifier input.