Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1998-10-16
2000-11-14
Tran, Toan
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327536, H03K 522, G05F 110
Patent
active
06147519&
ABSTRACT:
A low voltage comparator for amplifying a voltage difference between a pair of differential inputs. A boost capacitor charges to a boost voltage in excess of the low supply voltage, a differential pair of MOSFET transistors, each said transistor including a gate, a source, a drain, and a body terminal. The comparator also includes a latch mechanism built from a cross-coupled pair of MOSFET transistors for latching the compared result. A well capacitor is used to charge the body terminal of the differential pair where the boost capacitor and the well capacitor boost the common source voltage and reduce the threshold voltage of the differential pair to allow the supply voltage to be at relatively low level.
REFERENCES:
patent: 5572158 (1996-11-01), Lee et al.
patent: 5719525 (1998-02-01), Khoury
patent: 5805021 (1998-09-01), Brehmer
patent: 5811994 (1998-09-01), Ricotti et al.
Photobit Corporation
Tran Toan
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