Design and analysis of current mirror OTA in 45 nm and 90 nm CMOS technology for bio-medical application

Jusoh, Wan Mohammad Ehsan Aiman Wan; Ruslan, Siti Hawa

doi:10.11591/eei.v9i1.1860

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…Table I shows the minimum specification requirements of design based on the biomedical specification and existing opamp [1,[5][6][7][8][9]. In this work, a more stringent requirement of specification is proposed, as shown in Table I in order to obtain a better performance with low supply voltage.…”

Section: Biomedical Op-amp Specificationmentioning

confidence: 99%

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The Design of Low Power Op-amp for Biomedical Application

Nasir,

Lee,

Chan

et al. 2024

JETAP

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This work presents a low-power operational amplifier (op-amp) circuit design which optimized and tailored specifically for biomedical circuit application in low power environment. The proposed op-amp design incorporates the folded cascode differential amplifier technique with a low voltage supply 1.2 V, utilizing current biasing, current mirrors, and adopted low-power circuit topologies. AC and DC analysis are carried out to analyse the performance of the proposed design. Extensive simulations executed using industrial standard EDA tool have validated the circuit design, and demonstrated a gain of 70.94 dB, UGBW of 4.90 MHz, GM of 52.70 dB, PM of 82.02 degrees, PSRR of 82.77 dB, CMRR of 100.78 dB, and total power dissipation of only 28.07 mW. Low power consumption is essential for biomedical circuit applications, and the result shows a significant power reduction without compromising other performance parameters. The proposed op-amp circuit design is suitable to be implemented in low-power and high-performance biomedical devices.

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Section: Biomedical Op-amp Specificationmentioning

confidence: 99%

“…Operational amplifiers (op-amps) are essential components in analog electronic circuits. It was widely use in biomedical applications where their main implementation is to amplify biopotential signals in the human body for an accurate diagnosis, monitoring, and therapy [1].…”

Section: Introductionmentioning

confidence: 99%

The Design of Low Power Op-amp for Biomedical Application

Nasir,

Lee,

Chan

et al. 2024

JETAP

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“…As the core of the AC-coupled amplifier, it evaluated the topologies of Operational Transconductance Amplifiers (OTA). Traditional OTA topologies found in the literature are: Miller, Cascode-Telescopic, Folded-Cascode, and Current-Mirror [4,10].…”

Section: Vd Vsmentioning

confidence: 99%

“…According to work presented in [10], the cascode-telescopic has a lower consumption than Miller OTA, but a smaller output swing than other topologies. In the work presented in [4], the current-mirror OTA showed better performance than the folded-cascode, concerning power consumption, gain, noise, and the Common Mode Rejection Ratio (CMRR).…”

Section: Vd Vsmentioning

confidence: 99%

A Low-Power Direct-Conversion Receiver with Improved Sensitivity using AC-Coupled Baseband Amplifier in 130 and 180 nm CMOS Technologies

Oliveira

Brito-Filho

2023

Preprint

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This paper evaluates the use of an AC-coupled amplifier as a base-band amplifier for a direct conversion receiver. Due to the importance oflow-power consumption circuits for modern applications, a passive-typeenvelope detector was used to perform the downconversion of the radiofrequency signal while the baseband amplifier improves the sensitivity.The circuits were designed and simulated using CMOS SkyWater 130nm and UMC 180 nm technologies. Open-source end-to-end ASIC designflow was used to obtain results to SkyWater technology. For both tech-nologies the results of each stage are presented, as well as a sensitivitycomparison for the envelope detector, and the sensitivity with the use ofthe amplifier. The power-consumption of the AC-coupled amplifier forSkyWater 130 nm was 1.8 μA and for UMC 180 nm was 0.9 μW . At theoperating frequency of 2.45 GHz, the receiver achieves a sensitivity of−58.5 dBm and −61.88 dBm for UMC and SkyWater technologies,respectively. The results are within the expectations and presented in theliterature. The AC coupled amplifier performs well as a baseband ampli-fier for a direct conversion receiver, improving sensitivity, amplifyingthe baseband signal in addition to adding low power consumption.

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“…Therefore, building high-performance blocks, such as low noise amplifiers and analog filters, are requirements for improving system performance [2]. For the implementation of biopotential acquisition systems, some of the most critical design considerations are low noise voltage and current levels, low harmonic distortion, reduced area, and low power consumption [3], [4]. A biomedical signal acquisition system, such as in Figure 2, consists of electrodes, amplifiers, low-pass filter (LPF), sample, socket (S/H), and analog-to-digital converter (ADC) [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Optimal design of CMOS current mode instrumentation amplifier using bio-inspired method for biomedical applications

Sabiri¹,

Bouyghf²,

Raihani³

et al. 2022

IJEECS

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Analog integrated circuits for biomedical applications require good performance. This paper presents an instrumentation amplifier (IA) design based on three complementary metal oxide semiconductor (CMOS) conveyors with an active resistor. This circuit offers the possibility to control the gain by voltage and current. We have designed the IA to minimize the parasitic resistance (Rx) with large bandwidth and high common mode rejection ratio (CMRR) using the artificial bee colony algorithm (ABC). The topology is simulated using 0.35µm CMOS technology parameters. The optimization problem is represented by an objective function that will be implemented using MATLAB script. The results were approved by the simulation using the advanced design system (ADS) tool. The simulation results were compared to the characteristics of some other instrumentation amplifiers exsisting in the literature. The circuit has a higher CMRR than other topologies.

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Design and analysis of current mirror OTA in 45 nm and 90 nm CMOS technology for bio-medical application

Cited by 6 publications

References 18 publications

The Design of Low Power Op-amp for Biomedical Application

The Design of Low Power Op-amp for Biomedical Application

A Low-Power Direct-Conversion Receiver with Improved Sensitivity using AC-Coupled Baseband Amplifier in 130 and 180 nm CMOS Technologies

Optimal design of CMOS current mode instrumentation amplifier using bio-inspired method for biomedical applications

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