326 the nmos device 326 can stay in saturation region this allows any resistance difference between fuse terminal and the reference resistor 324 to be amplified to an output node 334 the amplified output signal at the node 334 will be inverted through an inverter 336 and outputted it is noteworthy that the tracking resistors 330 and 332 are implemented mainly to help improve tracking while the pmos devices 320 and 328 are implemented as pull up devices to enable disable the amplifier it is also noteworthy that two main current paths one through the nmos device 322 and another through the nmos device 326 determine the voltage at the output node 334 fig3 c illustrates a sense amplifier 338 with a pmos device configured as a diode to bias another pmos device in accordance with the eighth embodiment of the present invention the sense amplifier 338 compares resistance of a selected electrical fuse from the fuse cell connected to the source of a nmos device 340 against the resistance of a reference resistor 342 to determine a logic state output a pmos device 344 is configured as a diode to bias a pmos device 346 such that the pmos device 346 can operate in saturation with higher output impedance during a reading process the pmos device 344 the pmos device 346 the nmos device 340 and a nmos device 348 will be turned on the resistance difference between the fuse terminal and the reference resistor 342 will output through a node 350 fig4 presents a block diagram 400 illustrating how data from each individual.