Back to results
US 6,297,682 B1Granted
Differential sense amplifier circuit
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorChikayoshi Morishima
Life of this patent
Estimating the term…
Abstract
Disclosed is an amplifier circuit comprising: an amplifier 1 which is activated when supplied with a control signal SE and which outputs a pair of amplified signals D and DC; a detection circuit 2 for detecting one of the pair of amplified signals D and DC being changed in potential and outputting a detection signal PO upon detection of the potential change; and a latching circuit 3 which receives a set signal S and the detection signal PO and which outputs the control signal SE. The latching circuit 3 starts outputting the control signal SE in response to an input of the set signal S and terminates the output of the control signal SE upon input of the detection signal PO.
Claims17
An amplifier circuit comprising:
- an amplifier constituted to be activated when supplied with a first control signal and to output a pair of amplified signals;
- a detection circuit for receiving said pair of amplified signals from said amplifier and detecting one of the pair of amplified signals being changed in potential, said detection circuit further outputting a detection signal upon detection of the potential change in one of said pair of amplified signals;
- and
- a holding circuit for receiving a second control signal and said detection signal from said detection circuit and outputting said first control signal;
- wherein said holding circuit starts outputting said first control signal in response to an input of said second control signal, terminates the output of said first control signal in response to an input of said detection signal, and holds signal data in effect at the time when said second control signal is terminated, and
- said holding circuit is an edge trigger type holding circuit which holds signal data such that said first control signal is output only in response to either a leading edge or a trailing edge of said second control signal.
3 more elements
An amplifier circuit comprising:
- an amplifier constituted to be activated when supplied with a first control signal and to output a pair of amplified signals;
- a detection circuit for receiving said pair of amplified signals from said amplifier and detecting one of the pair of amplified signals being changed in potential, said detection circuit further outputting a detection signal upon detection of the potential change in one of said pair of amplified signals;
- and
- a holding circuit for receiving a second control signal and said detection signal from said detection circuit and outputting said first control signal;
- wherein said holding circuit starts outputting said first control signal in response to an input of said second control signal, terminates the output of said first control signal in response to an input of said detection signal, and holds signal data in effect at the time when said second control signal is terminated;
- said holding circuit is constituted by an RS latching circuit having a set and a reset input terminal, said set input terminal being fed with said second control signal, said reset input terminal being supplied with said detection signal;
- and
- said second control signal is terminated earlier than the time when said detection signal is output by said detection circuit.
5 more elements
An amplifier circuit comprising:
- an amplifier constituted to be activated when supplied with a first control signal and to output a pair of amplified signals;
- a detection circuit for receiving said pair of amplified signals from said amplifier and detecting one of the pair of amplified signals being changed in potential, said detection circuit further outputting a detection signal upon detection of the potential change in one of said pair of amplified signals;
- and
- a holding circuit for receiving a second control signal and said detection signal from said detection circuit and outputting said first control signal;
- wherein said holding circuit starts outputting said first control signal in response to an input of said second control signal, terminates the output of said first control signal in response to an input of said detection signal, and holds signal data in effect at the time when said second control signal is terminated;
- said amplifier circuit further comprising another holding circuit for receiving said pair of amplified signals from said amplifier and holding data corresponding to the received pair of amplified signals.
3 more elements
An amplifier circuit comprising:
- an amplifier constituted to be activated when supplied with a first control signal and to output a pair of amplified signals;
- a detection circuit for receiving said pair of amplified signals from said amplifier and detecting one of the pair of amplified signals being changed in potential, said detection circuit further outputting a detection signal upon detection of the potential change in one of said pair of amplified signals;
- and
- a holding circuit for receiving a second control signal and said detection signal from said detection circuit and outputting said first control signal;
- wherein said holding circuit starts outputting said first control signal in response to an input of said second control signal, terminates the output of said first control signal in response to an input of said detection signal, holds signal data in effect at the time when said second control signal is terminated;
- and
- said holding circuit comprises initializing means which is reset in response to a third control signal.
4 more elements
Dependencies are inferred from the claim text.