A Design Guide for Comparator-Based Switched-Capacitor Integrator

Biabanifard, Sadegh; Aghaee, Toktam; Asadi, Shahrouz

doi:10.14810/elelij.2015.4108

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…So comparator‐based circuits are considered as an alternative to OPAMPs. It is obvious the complexity increased since the virtual ground effect has to be simulated but higher speed and lower power consumption are attracting enough to deal more complex circuits . Figure depicts OPAMP‐based switched‐capacitor integrator.…”

Section: Conventional Cbsc Integratormentioning

confidence: 99%

Nonlinear current source charge scheme for comparator based switched capacitor integrator

Valianpour¹,

Chaharmahali

Biabanifard³

2019

Int J Numerical Modelling

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The continuous development of complementary metal-oxide-semiconductor (CMOS) technology makes it difficult to design high speed and low power amplifiers. One of the appropriate alternatives is comparator-based circuits.In this paper, a modified structure for comparator-based switched-capacitor integrator is presented. This structure increases the clock frequency considerably by using a nonlinear current source. The proposed integrator involves replacing the two linear current sources in conventional comparator-based switched-capacitor integrator with just one nonlinear current source. Also, the new logic part is presented, which reduces the circuit size and power dissipation consequently. The suggested circuit reduces integration dependency to the logic part while decreases charge transfer phases to just a single phase. According to the proposed structure, a first order comparator-based switched-capacitor integrator is designed in 0.18 μm complementary metaloxide-semiconductor technology with a 100 MHz as the clock frequency.

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Section: Conventional Cbsc Integratormentioning

confidence: 99%

Nonlinear current source charge scheme for comparator based switched capacitor integrator

Valianpour¹,

Chaharmahali

Biabanifard³

2019

Int J Numerical Modelling

Self Cite

View full text Add to dashboard Cite

show abstract

“…And ring oscillator is a circuit usually uses transistors without using passive elements [4]. The main reason of the tendency to design full transistor CMOS circuits is the ability of easy integration with absence of passive elements which reduces the die area [12][13][14][15][16][17][18][19][20]. The most significant feature of a ring oscillator is lower cost due to lower die area and design simplicity [1,4,5].…”

Section: Introductionmentioning

confidence: 99%