A very compact CMOS instrumentation amplifier with nearly rail-to-rail input common mode range

Bruschi, P.; Cesta, F. Del; Longhitano, A. N.; Piotto, M.; Simmarano, R.

doi:10.1109/esscirc.2014.6942087

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…The results are summarized in Table 1. The CMRR recording of the propsed CMIA is comparable with the implementations in [14][15][16].…”

Section: Simulation Results and Discussionmentioning

confidence: 80%

Current-Mode Rail-to Rail Instrumentation Amplifier for General Purpose Instrumentation Applications

Cini

2016

International Journal of Applied Mathematics, Electronics and Computers

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Instrumentation amplifiers are used extensively in bio-potential reading, industrial sensor applications, Wheatstone bridge amplifiers etc. In this work, a high input common-mode range instrumentation amplifier is presented. The amplifier is composed of two second generation current conveyors (CCII+) with common-mode input range close to supply swings and a differential difference current conveyor (DDCC) at the second stage with high voltage swing at the output. Also an optional DC servo loop is employed as a feedback to second stage for the removal of any possible DC offset voltage at the output which can be used for AC coupled applications. The simple design strategy with high input common-mode range and nearly rail-to-rail output stage together with increased bandwidth advantage of current-mode approach makes the proposed implementation desirable for many of the general purpose instrumentation applications. The design is made using 0.35μm AMS technology with 3V supply voltage. The operation is verified by HSPICE simulations.

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“…The results are summarized in Table 1. The CMRR recording of the propsed CMIA is comparable with the implementations in [14][15][16].…”

Section: Simulation Results and Discussionmentioning

confidence: 80%

Current-Mode Rail-to Rail Instrumentation Amplifier for General Purpose Instrumentation Applications

Cini

2016

International Journal of Applied Mathematics, Electronics and Computers

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“…This paper considers a new calculation method of the DDA errors from the several input common-mode voltages on different inputs (1-2, 3-4) of DDA. Also the circuit and parametric solutions for DDAs input stages, which increase the CMRR are proposed [10,8,11,7,12,13,14,15,9]. The presence of the common-mode voltages 2 / ) (…”

Section: Inclusionmentioning

confidence: 99%

The method of the errors calculation from the input common-mode signal in the analog interfaces based on the differential difference operational amplifiers and the ways of their decrease

Prokopenko

Pakhomov

Bugakova

et al. 2016

2016 International Siberian Conference on Control and Communications (SIBCON)

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The article suggests a new method of the errors evaluation from the several common-mode signals in the differential difference operational amplifiers (DDAs), based on the theory of autonomous multiport circuit. These errors of DDA in its main connection circuits can be described by feeding a special current autonomous parameter to the classical equivalent circuit of DDA. This parameter is connected with the highimpedance node of DDA and depends on the level of the common-mode components in the inputs of some input differential stages and also on the parameters spread of the elements.The paper shows that in DDAs the common-mode rejection ratio (CMRR) significantly worsens in comparison with classical op-amp. The parametric and circuitry methods of CMRR increase in the DDAs based on the inherent compensation of parasitic impedances are considered.

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CMIA for Biomedical and Low-Voltage Low-Power Applications

Safari¹,

Ferri

Mınaeı

et al. 2018

Analog Circuits and Signal Processing

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A very compact CMOS instrumentation amplifier with nearly rail-to-rail input common mode range

Cited by 7 publications

References 10 publications

Current-Mode Rail-to Rail Instrumentation Amplifier for General Purpose Instrumentation Applications

Current-Mode Rail-to Rail Instrumentation Amplifier for General Purpose Instrumentation Applications

The method of the errors calculation from the input common-mode signal in the analog interfaces based on the differential difference operational amplifiers and the ways of their decrease

CMIA for Biomedical and Low-Voltage Low-Power Applications

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