VIRTUAL CURRENT SENSING SYSTEM

摘要

A virtual sensing system includes a sensing network (20) that is external to a standard cell (10) for sensing a reference current (IREF) in the standard cell and for generating a scaled current (ISENS) without breaking the reference current path (19) and without inserting any sensing device in series with the reference current. The reference current can be used, for example, for duplication and/or scaling.