Patent ID: 8773934

Claim:
A sense amplifier for use with nonvolatile memory, comprising: a first pair of input for receiving input signals from a nonvolatile memory, a second pair of input for receiving the input signals, and an output circuit, wherein the input signals comprise a first input signal and a second input signal; a first transistor input pair coupled to the first pair of input and the output circuit, the first transistor input pair connected to a pair of PMOS transistors configured to amplify a difference between a voltage of the first input signal and the second input signal applied to the first pair of input according to a first common input range and for producing a first output signal supplied to the output circuit; a second transistor input pair coupled to the second pair of input and the output circuit, the second transistor input pair connected to said pair of PMOS transistors configured to amplify a difference between a voltage of the first input signal and the second input signal applied to the second pair of input according to a second common input range and for producing a second output signal supplied to the output circuit; and a third transistor input pair coupled to the output circuit, the third transistor input pair configured to amplify a difference between a voltage of the first input signal and a voltage of the second input signal according to a third common input range.