Sense amplifier, memory, and method for controlling sense amplifier

A memory, comprising a sense amplifier, wherein the sense amplifier comprises:

• an amplification circuit configured to amplify a voltage transmitted by a bit line or a reference bit line, when the sense amplifier is at an amplification stage;
• and
• a first switch circuit configured to control the amplification circuit to be disconnected from the reference bit line, when the sense amplifier performs a read operation on the bit line and the sense amplifier is at the amplification stage.

A method for controlling a sense amplifier, comprising:

• controlling an amplification circuit to be disconnected from a reference bit line, when the sense amplifier performs a read operation on a bit line and is at an amplification stage.