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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Vaijayanthi, M. Vivek, K. |
| Copyright Year | 2015 |
| Description | Author affiliation: Dept. of Electron. & Commun. Eng., Manakula Vinayagar Inst. of Technol., Puducherry, India (Vaijayanthi, M.; Vivek, K.) |
| Abstract | The need for ultra-low power and area efficient analog -to- digital converters (ADCs) is pushing towards the use of low voltage CMOS dynamic comparators to maximize the power efficiency and speed. The conventional dynamic comparators have features like high input impedance, no static power dissipation and good robustness against noise and mismatch. The drawback is that large numbers of transistors are used to minimize the offset, so the speed of the comparator is degraded. Double tail comparators overcome the drawbacks in conventional comparator by reducing the stacking of transistors with low supply voltage with less delay. But the transconductance is low for this comparator. In low power double tail comparator, without complicating the design and by adding few transistors the positive feedback in the regeneration is strengthened with results in reduced delay time. In this paper delay analysis of different dynamic comparators are presented with respect to speed and supply voltage. Then based on the delay analysis results, the conventional dynamic comparator is modified in terms of transistor technology and architecture results as body driven comparator for fast operation even in ultra low supply voltages. Simulation results in 90nm CMOS technology reveals that the delay time is considerably reduced. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 970895 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479968176 |
| e-ISBN | 9781479968183 |
| DOI | 10.1109/ICIIECS.2015.7193107 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-03-19 |
| Publisher Place | India |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Low voltage Regeneration Latches Body driven comparator Dynamic Comparators Noise Capacitance Double Tail comparators Inverters Delay Analysis Delays Transistors |
| Content Type | Text |
| Resource Type | Article |
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