Author(s): Siroos Araghian | Abbas Golmakani
Journal: International Journal of Electronics Communication and Computer Technology
ISSN 2249-7838
Volume: 2;
Issue: 6;
Start page: 208;
Date: 2012;
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Keywords: Component | Three-stage amplifier | Low power amplifier | Low voltage | DACRNMC | RNMC.
ABSTRACT
A novel three-stage amplifier topology for low voltage , low power and large capacitive load applications is proposed . This scheme is called the tripple-active capacitance and resistance in reversed nested Miller compensation (DACRNMC). The frequency bandwidth of the DACRNMC amplifier is improved due to the usage of active compensation capacitors and active resistance by changing the zeros to the right. The amplifier's die area is reduced compared to the existing techniques in reversed nested Miller compensation (RNMC) scheme. Moreover, the presence of two left-half-plane zeros in the amplifier's frequency response enhances the stability and hence improves the settling behavior of the amplifier.
Journal: International Journal of Electronics Communication and Computer Technology
ISSN 2249-7838
Volume: 2;
Issue: 6;
Start page: 208;
Date: 2012;
VIEW PDF
DOWNLOAD PDF Original pageKeywords: Component | Three-stage amplifier | Low power amplifier | Low voltage | DACRNMC | RNMC.
ABSTRACT
A novel three-stage amplifier topology for low voltage , low power and large capacitive load applications is proposed . This scheme is called the tripple-active capacitance and resistance in reversed nested Miller compensation (DACRNMC). The frequency bandwidth of the DACRNMC amplifier is improved due to the usage of active compensation capacitors and active resistance by changing the zeros to the right. The amplifier's die area is reduced compared to the existing techniques in reversed nested Miller compensation (RNMC) scheme. Moreover, the presence of two left-half-plane zeros in the amplifier's frequency response enhances the stability and hence improves the settling behavior of the amplifier.
