REFERENCE VOLTAGE GENERATORS AND SENSING CIRCUITS

摘要

Described examples include sensing circuits and reference voltage generators for providing a reference voltage to a sensing circuit. The sensing circuits may sense a state of a memory cell, which may be a PCM memory cell. The sensing circuits may include a cascode transistor. Examples of reference voltage generators may include a global reference voltage generator coupled to multiple bank reference voltage generators which may reduce an output resistance of the voltage generator routing.

主权项

1. A reference voltage generator comprising:
a replica circuit configured to receive a global reference voltage and provide a bank reference voltage based, at least in part, on the global reference voltage; and a source follower circuit, wherein the source follower circuit includes an input coupled to an output of the replica circuit, and wherein the source follower circuit further includes an output configured to couple to a sensing circuit.