1 V CMOS instrumentation amplifier with high DC electrode offset cancellation for ECG acquisition systems

Nanda, Chinmayee; Mukhopadhyay, J.; Mandal, Dipak Kumar; Chakrabarti, Saswat

doi:10.1109/techsym.2010.5469187

Cited by 14 publications

(7 citation statements)

References 11 publications

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“…Such as the application system Based on DSD [38][39][40][41], and The Delta-Sigma digital quantizer, analog power amplifier and digital power amplifier. The voice system in vehicle development [42][43][44][45] is also the another appropriate field.…”

Section: Resultsmentioning

confidence: 99%

A Distributed Speech Algorithm for Large Scale Data Communication Systems

Xiong

Tong

Guo

et al. 2014

2014 IEEE International Parallel &Amp; Distributed Processing Symposium Workshops

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Data-driven computing and using data for strategic advantages are exemplified by communication systems, and the speech intelligibility in communication systems is generally interrupted by interfering noise. This interference comes from the environmental noise, so we can reduce them intelligibility by masking the interested signal [1, 2]. An important work in communication systems is to extract speech from noisy speech and inhibiting background noise. In this paper, the subspace algorithm theory is introduced into a speech noise reduction system. We first analyze the principle of LMS adaptive speech noise reduction algorithm with the subspace algorithm, and then, we merge the subspace algorithm into the VS-LMS algorithm and propose a combined algorithm for an adaptive speech noise reduction system. Furthermore, we analyze the combined algorithm, which can decrease musical noise, as well as generate a suitable step-size factor to resolve the contradiction. This issue cannot be resolved by the current LMS algorithm [31], which has less convergence speed and larger residual noise than our system. Our simulation results demonstrate that our algorithm can get 3 to 10 times better than original algorithm in low SNR (-5 ~ 0db) and high SNR (0 ~ +5db).

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Section: Resultsmentioning

confidence: 99%

A Distributed Speech Algorithm for Large Scale Data Communication Systems

Xiong

Tong

Guo

et al. 2014

2014 IEEE International Parallel &Amp; Distributed Processing Symposium Workshops

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“…Gain is provided by a resistive divider in this structure (Figure 5). Noise and power consumption are high and Common-Mode Rejection Ratio (CMRR) is low due to resistors' mismatches, but the input impedance is large in this structure and common-mode voltage is obtained without any peripheral circuit [5,6]. In an ECG ampli er, a right leg drive circuit is used to eliminate common-mode signals.…”

Section: Electrocardiogram Ampli Ermentioning

confidence: 99%

MOSCAP linearization and its application in low-power electrocardiogram amplier

Ghamati

Maymandi-Nejad

2016

Scientia Iranica

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Considerable area occupied by capacitors is one of the main issues in the design of many ICs, especially in biomedical applications. MIM capacitor can be replaced by the MOSCAP to reduce the chip area and cost. Although the MOSCAP shows a non-linear behavior, linearization can be performed to some extent using serial and parallel compensation. In this paper, a new approach is presented, by which the impact of MOSCAP non-linearity on the THD of the circuit is reduced. The proposed technique is used in an electrocardiogram ampli er. The appropriate structure for each MOSCAP of the ampli er is selected by analyzing the non-linear e ect of the MOSCAPs on the ampli er's output linearity. The non-linear e ect of MOSCAP is reduced by choosing the appropriate slopes in the MOSCAP capacitance-voltage curve. As a result, the occupied area of the ampli er is reduced to less than 10 percent of the area of the ampli er with MIM capacitors, while the THD is not changed considerably. The output THD is 0.65% at 60 Hz and the total power consumption is 72 nW.

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“…The extracted amplified analog signal then forms the input to the digitization module consisting of a MSP-430 microcontroller with an on-board TFT display (320 × 240 pixels). The digital module also has a built-in SD card interface feature making it a class above existing ECG machine in the market today [1][2][3][4][5][6][7].…”

Section: System Integrationmentioning

confidence: 99%

Development of a Low-Cost, Portable, 12-Lead ECG Machine for Health- Care Centres Across Rural India

KM¹

2013

J Med Diagn Meth

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India being a developing country, it concentrates its resources towards indigenizing various technologies making them economically feasible to the general population. Considering that roughly half of the country dwells in villages and small towns, even basic sanitation and primary health-care facilities are virtually non-existent in far-flung reaches of the Indian sub-continent. Coupling the problems of widespread poverty with increase in lifestyle related diseases warrants a greater budgetary allocation needed for providing primary health-care across the country. Among the various life threatening diseases cardio-vascular diseases form a sizable chunk. An attempt has been made towards indigenous development of a 12-channel ECG machine beginning from first principles. This paper presents a detailed technological overview on the development of an ECG machine with special emphasis on the design aspects of the analog front-end chip. Detailed computational simulations were employed in arriving at a viable electrical design of the front-end chip which could be fabricated cost-effectively. The front-end IC has been integrated with analog and digital modules to realize a one of a kind 12-channel ECG machine within the country.

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1 V CMOS instrumentation amplifier with high DC electrode offset cancellation for ECG acquisition systems

Cited by 14 publications

References 11 publications

A Distributed Speech Algorithm for Large Scale Data Communication Systems

A Distributed Speech Algorithm for Large Scale Data Communication Systems

MOSCAP linearization and its application in low-power electrocardiogram amplier

Development of a Low-Cost, Portable, 12-Lead ECG Machine for Health- Care Centres Across Rural India

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