公开(公告)号：US20140125389A1

公开(公告)日：2014-05-08

申请号：US13754543

申请日：2013-01-30

Applicant: TEXAS INSTRUMENTS INCORPORATION

Inventor： Adam L. Shook

IPC: H03K5/12

CPC classification number: H03K19/00361 ,  G05F3/16 ,  H03K5/12 ,  H03K19/00384

Abstract: An apparatus, comprising: a PMOS current mirror have a first PFET and a second PFET coupled at their respective gates; a first current source coupled to drain of the first PFET; a second current source configured to have a current that is greater than the first current source, coupled to the drain of the second PFET; a capacitor coupled to the gates of the PFET current mirror; a third PFET gate-coupled to the current mirror; a driver NFET having a gate coupled to the drain of the third PFET, wherein a drain of the driver NFET is coupled to the capacitor.

Abstract translation: 一种装置，包括：PMOS电流镜，具有在其各自的栅极耦合的第一PFET和第二PFET; 耦合到所述第一PFET的漏极的第一电流源; 被配置为具有大于所述第一电流源的电流的第二电流源，耦合到所述第二PFET的漏极; 耦合到PFET电流镜的栅极的电容器; 栅极耦合到电流镜的第三PFET; 具有耦合到第三PFET的漏极的栅极的驱动器NFET，其中驱动器NFET的漏极耦合到电容器。