Patent ID: 8588021

Claim:
An apparatus comprising: a supply node to receive a supply voltage; a line coupled to a memory cell of a device; and a sense amplifier unit configured to compare a copy of a current with a reference current to generate an output signal, wherein the copy of the current has an amplitude based on a value of information stored in the memory cell, and wherein the output signal represents the value of information stored in the memory cell, the sense amplifier including: a circuit path coupled between the supply node and the line to carry the current, the circuit path including a first transistor located between the supply node and the line; a second transistor including a second gate coupled to a first gate of the first transistor, the second transistor including a first transistor node coupled to a circuit node; and an operational amplifier including a first input node coupled to the line, a second input node coupled to the circuit node, and an output node coupled to the circuit node.