Stable low-dissipation reference circuit.

摘要

When using a laser programmable fuse, a circuit should be 100% stable both before + after the fuse is blown. So far no CMOS circuit can be 100% stable without drawing a constant current. With the "Master fuse Enable" scheme one fuse circuit (master fuse) draws current while disabling all other fuse circuits on-chip. Thus giving 100% stability + reducing power consumption on a chip where no fusing has been done. If, however, one wished to use the rest of the fuses, then the master fuse is blown + all fuse circuits now become active and draw current. <IMAGE>