Output

The switching of the eleven transistor resistive fuse is controlled by the gates of M3 and M4. When the voltage on one of these gates is low, the transistor switches off, and no current flows between the two terminals. Therefore, the voltages on these two nodes represent the state of the resistive fuse. Because only transistor M3 turns off for a positive gradient, and only transistor M4 for a negative gradient, the two nodes also yield information about whether the gradient is positive or negative. Therefore, these two nodes provide the output of each resistive fuse.