Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1998-06-23
2000-09-05
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327179, 365203, 365208, H03K 302, G11C 706
Patent
active
061148814
ABSTRACT:
A current mirror type sense amplifier can prevent the lowering of gain when the input signal and the inverted input signal are swung around the power voltage level, and also stably performs the sensing & amplifying operation in wide range from low power voltage to high power voltage. The sense amplifier includes first and second current mirror type sense amplifying units for primarily sensing and amplifying the voltage differences between an input signal and an inverted input signal and vice versa, respectively, in response to a first sense enable signal; a third current mirror type sense amplifying unit for sensing and amplifying the voltage difference between output signals of the first and the second current mirror type sense amplifying units in response to a second sense enable signal; a first precharging unit for precharging output nodes of the first and the second current mirror type sense amplifying units, respectively, in response to the first sense enable signal; and a second precharging unit for precharging an output node of the third current mirror type sense amplifying unit, in response to the second sense enable signal.
REFERENCES:
patent: 4811295 (1989-03-01), Shinoda
patent: 5389841 (1995-02-01), Agata et al.
patent: 5450361 (1995-09-01), Iwahashi et al.
patent: 5872465 (1999-02-01), Saitoh
patent: 5886936 (1999-03-01), Yang
patent: 5920208 (1999-07-01), Park
Callahan Timothy P.
Englund Terry L.
Hyundai Electronics Industries Co,. Ltd.
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