Patent ID: 8737120

Claim:
A sensing circuit comprising: a pre-sense circuit, configured for operation in a first power domain, comprising: a first leg configured to couple to a memory cell, wherein the first leg includes a first transistor connected in a cascode configuration and configured to provide a first current based, at least in part, on a state of the memory cell; a second leg, wherein the second leg includes a second transistor connected in a cascode configuration and configured to provide a second current; a first output coupled to the first leg and configured to provide a first voltage based, at least in part, on the first current; a second output coupled to the second leg and configured to provide a second voltage based, at least in part, on the second current; and a comparator, configured for operation in a second, lower voltage, power domain, having inputs coupled to the first and second outputs, wherein the comparator is configured to provide an output signal based on a comparison of the first and second voltages.