US 11,894,048 B2 · Control amplifying circuit, sense amplifier and semiconductor memory

Abstract

A control amplifying circuit includes a power supply output circuit, an isolation control circuit and an amplifying circuit. The power supply output circuit is configured to receive a power supply switching signal, and select one preset voltage value from at least two preset voltage values according to the power supply switching signal to output as a preset power supply signal. The isolation control circuit is configured to receive a control command signal and the preset power supply signal, and generate an isolation control signal according to the control command signal. The amplifying circuit is configured to receive the isolation control signal and a signal to be processed, and amplify the signal to be processed based on the isolation control signal to obtain a target amplified signal.

Claims20

Dependent claims

A control amplifying circuit, comprising:

a power supply output circuit, configured to receive a power supply switching signal, and select one of at least two preset voltage values according to the power supply switching signal to output as a preset power supply signal;
an isolation control circuit, configured to receive a control command signal and the preset power supply signal, and generate an isolation control signal according to the control command signal;
and
an amplifying circuit, configured to receive the isolation control signal and a signal to be processed, and amplify the signal to be processed based on the isolation control signal to obtain a target amplified signal.

1 more element

A control method for an amplifying circuit, applied to an amplifying circuit connected with a target detection unit, the control method comprising:

when the amplifying circuit is in a first amplification phase, selecting, by a power supply output circuit, a second voltage value to output as a preset power supply signal according to a power supply switching signal, generating, by an isolation control circuit, an isolation control signal with the second voltage value according to a control command signal in a second state, and receiving, by the amplifying circuit, the isolation control signal and a signal to be processed and performing preliminary amplification on the signal to be processed;
and
when the amplifying circuit is in an evolution phase, selecting, by the power supply output circuit, a first voltage value to output as the preset power supply signal according to the power supply switching signal, generating, by the isolation control circuit, an isolation control signal with the first voltage value according to the control command signal in the second state, and performing, by the amplifying circuit, secondary amplification on the signal to be processed according to the isolation control signal.

Dependencies are inferred from the claim text.

Facts

Application

17/807,135Filed 15 Jun 2022 · continuation

Priority

CN 202111657770.X31 Dec 2021

Published

US 2023/0223071 A113 Jul 2023

Granted

6 Feb 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

G11C 7/065
Sense amplifiers; Associated circuits , e.g. timing or triggering circuits: differential amplifiers of latching type
G11C 11/4091
Read-write [R-W] circuits: sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or…
G11C 7/02
Arrangements for writing information into, or reading information out from, a digital store: with means for avoiding parasitic signals
G11C 7/06
Arrangements for writing information into, or reading information out from, a digital store: sense amplifiers; Associated circuits , e.g. timing…

Control amplifying circuit, sense amplifier and semiconductor memory

Life of this patent

Control amplifying circuit, sense amplifier and semiconductor memory

Life of this patent

Abstract

Claims20