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Proceedings ArticleDOI
C. B. Kushwah, Deepak Soni, R. S. Gamad 
16 Dec 2009
10 Citations
A new current comparator exhibits high speed whilst maintaining low power consumption.
The proposed comparator is well designed to operate with supply voltages between 400 mV and 1 V.
Furthermore, the proposed circuit offers a wide input common mode range as large as the supply voltage while employing PMOS transistors at the input of the comparator.
Furthermore the overdrive voltage of the input transistor can be optimized to reduce the offset voltage of the comparator independent of the input common mode voltage.
We present a new comparator design featuring wide-range and high-speed operation using only conventional digital CMOS cells.
The internal structure of the comparator permits one to overcome the technological constraints arising from a purely digital process.
This paper demonstrates the first reported high temperature voltage comparator in CMOS silicon carbide.
Based on the presented analysis, a new dynamic comparator is proposed, where the circuit of a conventional double-tail comparator is modified for low-power and fast operation even in small supply voltages.
These expressions corroborate previously stated results with analytical support as well as providing useful insight for the design of dynamic comparator by analyzing the influence of each transistor pair individually.
Journal ArticleDOI
L. Ravezzi, David Stoppa, G.-F. Dalla Betta 
59 Citations
A simple modification to an existing current comparator is proposed, which enables a very low response time to be achieved with a minimal increase in circuit complexity.

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