[PDF][PDF] Recharged Comparator and Multiple-Valued N-ary Frequency Divider

R Jensen, H Gundersen, JG Lomsdalen… - Proceedings of the 15th …, 2006 - academia.edu
R Jensen, H Gundersen, JG Lomsdalen, Y Berg
Proceedings of the 15th International Workshop on Post-Binary ULSI Systems, 2006academia.edu
This paper will present work on a recharged com-parator using Semi Floating-Gate (SFG)
MOS devices. The output voltage of a basic SFG MOS Comparator circuit is normally
interleaved with a recharge voltage. This prohibit control of passgates, which requires binary
control signals. An output buffer is introduced to allow the control of pass-gates and
multiplexers (MUXs) beyond a single recharge clock period. The recharged comparator is
utilized as reset logic in a recharged multiplevalued (MV) n-ary frequency divider (FDIV) …
Abstract
This paper will present work on a recharged com-parator using Semi Floating-Gate (SFG) MOS devices. The output voltage of a basic SFG MOS Comparator circuit is normally interleaved with a recharge voltage. This prohibit control of passgates, which requires binary control signals. An output buffer is introduced to allow the control of pass-gates and multiplexers (MUXs) beyond a single recharge clock period. The recharged comparator is utilized as reset logic in a recharged multiplevalued (MV) n-ary frequency divider (FDIV). The MV FDIV reduces the number of transistors required for a configurable frequency division of modulus between two and eight. This makes it applicable as bit-counter and symbol clock generator in recharged configurable serial D/A converters. Simulation data is obtained using AMS 0.35µm process parameters c35b4.
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