Transconductance enhancement method for operational transconductance amplifiers

Li, Y.L.; Han, Ki-Jung; Tan, X.; Yan, Ning; Min, Hyang Ki

doi:10.1049/el.2010.1575

Cited by 78 publications

(26 citation statements)

References 2 publications

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“…Unlike the previous work, the Airtouch system is implemented directly on a mobile-sized touchscreen, making it potential to be integrated in the mobile devices. The channel coupling effect can be eliminated through creating a bootstrapped circuitry using a high gain operational amplifiers such as [25][26].…”

Section: Capacitive Based Remote Sensingmentioning

confidence: 99%

Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization

Barros¹,

Vanzella²,

Pentericci

et al. 2015

Proc. IAU

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Abstract-Touch sensing, as a major human/machine interface, is widely used in various commercial products such as smart watches, mobile phones, tablets and TVs. State-of-the-art touch detections are mainly based on mutual capacitive sensing, which requires necessary contact-touch, limiting the mobile user experience. Recently, remote gesture sensing is widely reported in both academy and industry as it can provide additional userexperience for mobile interface. The capacitive remote gesture sensing is mainly based on detecting self-capacitance, achieving high resolution through eliminating the parasitic mutual capacitance. In this work, we overview the different generations of touchscreen technology, comparing the touch and remote gesture sensing technologies difference. In addition, different remote gesture sensing technologies are also compared. The limitations and potentials of different topologies are discussed and a final conclusion about the technology trends is summarized in the end.

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Section: Capacitive Based Remote Sensingmentioning

confidence: 99%

Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization

Barros¹,

Vanzella²,

Pentericci

et al. 2015

Proc. IAU

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“…The conventional folded cascode amplifier is shown in Fig. 1 Y. L. Li et al [3] proposed further improvements in the recycling folded cascode structure by separating the AC path from DC path. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement

Ahmed

Shah

Tang

et al. 2015

2015 IEEE International Symposium on Circuits and Systems (ISCAS)

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An improved recycling folded cascode operational transconductance amplifier with gain boosting and enhanced phase-margin is proposed. Among four variants of folded cascode amplifiers that have been implemented in TSMC 0.18µm CMOS process under same power and area constraints, the proposed amplifier achieves the lowest settling error of less than 0.5% compared to 1.1% settling error by Improved Recycling Folded Cascode (IRFC), 1.4% settling error by Recycling Folded Cascode (RFC) and 30% settling error by conventional Folded Cascode (FC) amplifier. This performance enhancement is attributed to 30dB increment in low-frequency gain and 7 • improvement in the phase margin when compared with the second best performing Improved Recycling Folded Cascode amplifier.

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“…If we can greatly increase voltage gain without deteriorating other specifications (such as power dissipation, unit gain bandwidth, phase margin, and so on), it will be rather satisfactory. On the other hand, although some papers [1,2,3] published in recent years have given new ways to improve voltage gain, the effectiveness is limited. So, learning from these papers, a new amplifier is proposed in this paper to get extremely large voltage gain with other specifications also favorable.…”

Section: Introductionmentioning

confidence: 99%

A CMOS OTA with extremely large DC open-loop voltage gain

Zhuang

Zhu

Yang

et al. 2013

IEICE Electron. Express

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Abstract:The DC open-loop voltage Gain is a very important specification for amplifiers. In order to increase this specification, in this paper, we have proposed an improved folded cascode gain boosted amplifier (improved FCGBA) which has extremely large DC open-loop voltage gain. Compared to traditional FCGBA, this novel structure needs only one auxiliary amplifier, so it is energy saving. Finally, with SMIC 0.18 μm CMOS process of 1.8 V supply and Hspice simulator, a corresponding amplifier with a capacitor load of 1.6 pF is designed. Its voltage gain is 153 dB; unit gain bandwidth is 1.91 GHz; phase margin is 64 • ; 0.01% settling time is 2.36 ns; and the power dissipation is only 12.9 mW. This result confirms the validity of this new structure.

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Transconductance enhancement method for operational transconductance amplifiers

Cited by 78 publications

References 2 publications

Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization

Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization

An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement

A CMOS OTA with extremely large DC open-loop voltage gain

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