US 10,650,868 B2Granted

Self-tracking sensing amplification circuit

AssigneeeMemory Technology Inc.

InventorsDung Le Tan Hoang, Hao-Chun Hu, Po-Hao Huang

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Abstract

A sensing amplification circuit includes a sensing amplifier and a trigger control circuit. The sensing amplifier receives a data voltage and a reference voltage, and outputs a first data signal and a second data signal by comparing the data voltage and the reference voltage. The trigger control circuit includes a logic circuit and a set-reset latch. The logic circuit receives the first data signal and the second data signal, and changes a first control signal from a first voltage level to a second voltage level when one of the first data signal and the second data signal changes its state. The first set-reset latch receives the first control signal and a second control signal, and generates a trigger signal to enable the sensing amplifier when the second control signal changes state and disable the sensing amplifier when the first control signal changes state.

Claims14

Dependent claims

A sensing amplification circuit, comprising:

a sensing amplifier configured to receive a data voltage and a reference voltage, and output a first data signal and a second data signal by comparing the data voltage and the reference voltage, wherein the first data signal and the second data signal become complementary after the sensing amplifier is enabled, and the first data signal and the second data signal are at a same state when the sensing amplifier is disabled;
and
a trigger control circuit comprising:
a logic circuit coupled to the sensing amplifier, and configured to receive the first data signal and the second data signal, and change a first control signal from a first voltage level to a second voltage level when one of the first data signal and the second data signal changes its state;
and
a first set-reset latch coupled to the sensing amplifier and the logic circuit, and configured to receive the first control signal and a second control signal, and generate a trigger signal to enable the sensing amplifier when the second control signal changes from the first voltage level to the second voltage level and disable the sensing amplifier when the first control signal changes from the first voltage level to the second voltage level.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/281,099Filed 21 Feb 2019 · us provisional application
Priority: 18 Apr 2018
Published: US 2019/0325923 A124 Oct 2019
Granted: 12 May 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

H10D 64/118
Electrodes of devices having potential barriers: electrodes comprising insulating layers having particular dielectric or electrostatic properties,…
G11C 5/147
Power supply arrangements , e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels: voltage…
G11C 7/065
Sense amplifiers; Associated circuits , e.g. timing or triggering circuits: differential amplifiers of latching type
G11C 7/08
Sense amplifiers; Associated circuits , e.g. timing or triggering circuits: control thereof