عنوان مقاله [English]
In this paper a new voltage amplifier is investigated which is employed in the time and voltage domain converters such as analog to digital converters (ADCs) and time to digital converters (TDCs). The time and voltage amplifiers are used in the time and voltage domain converters for increasing the time resolution and accuracy. The voltage and time amplifiers are basically utilized in the ADCs and TDCs which employ the pipeline or interpolation techniques for digitizing the time interval between two input signals. In these converters, the main time or voltage residue is ampliïed by a time or voltage amplifier and fed to the next stage. The proposed voltage amplifier uses a charge pump technique for voltage amplification. The proposed circuit does not use delay lines in its structure and features low circuit complexity, low sensitivity to temperature, power supply and process (PVT) variation and high accuracy compared with the time or voltage amplifiers which previously proposed. The amplifier improves dynamic range of the converters. Therefore, the amplifier produces a exact voltage gain. Also, the linear range of the proposed voltage amplifier is appropriate.