Back to results
US 9,318,165 B2Granted
Method and apparatus for low-level input sense amplification
AssigneeQUALCOMM Incorporated
InventorsChulmin Jung, Rui Li, Sei Seung Yoon, Gregory Ameriada Uvieghara
Life of this patent
Estimating the term…
Abstract
A sense amplifier is disclosed that includes an amplifier circuit configured to receive, at an input, an input signal including an input level, the amplifier circuit configured to provide an amplified output signal including a gain with respect to the input level; and a feedback circuit coupled to receive the amplified output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, an adjusted version of the amplified output signal including a modified output magnitude based on common mode feedback.
Claims18
A sense amplifier comprising:
- an amplifier circuit configured to receive, at an input, an input signal comprising an input level generated based on a programmable device, the amplifier circuit configured to provide an amplified differential output signal comprising a gain with respect to the input level;
- and
- a feedback circuit coupled to receive the amplified differential output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, a an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the feedback circuit is further configured to limit the modified output magnitude and reduce the input level of the input signal generated based on the programmable device.
A sense amplifier comprising:
- an amplifier circuit configured to receive, at an input, an input signal comprising an input level generated based on a programmable device, the amplifier circuit configured to provide an amplified differential output signal comprising a gain with respect to the input level, wherein the amplifier circuit further comprising a follower circuit configured to shift a supply voltage level provided to the amplifier circuit;
- and
- a feedback circuit coupled to receive the amplified differential output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, a an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback.
A sense amplifier comprising:
- an amplifier circuit configured to receive, at an input, an input signal comprising an input level generated based on a programmable device, the amplifier circuit configured to provide an amplified differential output signal comprising a gain with respect to the input level;
- and
- a feedback circuit coupled to receive the amplified differential output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, a an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the modified output magnitude comprises a threshold based on an operational characteristic of at least one device in the amplifier circuit coupled to the feedback circuit via a gate terminal of the at least one device.
A method comprising:
- receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- providing an amplified differential output signal comprising a gain with respect to the input level;
- receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the modified output magnitude is limited and the input level of the input signal generated is reduced based on the programmable device.
2 more elements
A method comprising:
- receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- shifting a supply voltage level provided to the amplifier circuit;
- providing an amplified differential output signal comprising a gain with respect to the input level;
- receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback.
3 more elements
A method comprising:
- receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- providing an amplified differential output signal comprising a gain with respect to the input level;
- receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the modified output magnitude comprises a threshold based on an operational characteristic of at least one device in the amplifier circuit coupled to the feedback circuit via a gate terminal of the at least one device.
2 more elements
A sense amplifier comprising:
- means for receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- means for providing an amplified differential output signal comprising a gain with respect to the input level;
- means for receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- means for providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the modified output magnitude is limited and the input level of the input signal generated is reduced based on the programmable device.
2 more elements
A sense amplifier, comprising:
- means for receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- means for shifting a supply voltage level provided to the amplifier circuit;
- means for providing an amplified differential output signal comprising a gain with respect to the input level;
- means for receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- means for providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback.
3 more elements
A sense amplifier, comprising:
- means for receiving, at an input of an amplifier circuit, an input signal having an input level generated based on a programmable device;
- means for providing an amplified differential output signal comprising a gain with respect to the input level;
- means for receiving the amplified differential output signal from the amplifier circuit at a feedback circuit;
- and
- means for providing, to the input of the amplifier circuit, an adjusted version of the amplified differential output signal comprising a modified output magnitude based on common mode feedback, wherein the modified output magnitude comprises a threshold based on an operational characteristic of at least one device in the amplifier circuit coupled to the feedback circuit via a gate terminal of the at least one device.
2 more elements
Dependencies are inferred from the claim text.