A LP, Very High-CMRR, Wide-Bandwidth FDCCII-Based CMIA Adapted to Both Current and Voltage Inputs

Ahmadi, S.; Azhari, Seyed Javad

doi:10.1007/s13369-018-3601-8

Cited by 8 publications

(4 citation statements)

References 14 publications

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“…The performance summary of the CMIA over temperature range of − 25 °C to 75 °C at ± 1.2 V supply voltage is shown in Table 4. A minimum CMRR of ~ 170 dB is achieved for both current and voltage signals at − 25 °C which is quite comparable to that of the recently reported CMIA designs [14,19,27]. Despite the CMRR magnitude, the voltage/current CMRR 3 dB-BW is less vulnerable to the temperature changes as it remains above 10 kHz/9.5 kHz over the entire temperature range.…”

Section: Process Voltage and Temperature Variations' Influencesupporting

confidence: 73%

“…The current subtracting stage consists of three improved Wilson current mirrors (M 39 -M 56 ) with cascade active loads (M 57 -M 64 ) [27] as it is shown in Fig. 3.…”

Section: Current-mode Instrumentation Amplifier Circuitmentioning

confidence: 99%

“…Therefore, the differential current gain between X and Z nodes can now be expressed as given in Eq. (27).…”

Section: Data Availabilitymentioning

confidence: 99%

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A current mode instrumentation amplifier with high common-mode rejection ratio designed using a novel fully differential second-generation current conveyor

et al. 2022

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This study presents a high common-mode rejection ratio (CMRR), and high power-supply rejection ratio (PSRR) current-mode instrumentation amplifier (CMIA) to overcome the limitations of existing differential voltage second-generation current conveyors (DVCCII)-based CMIAs in achieving high CMRR. The design is based on a fully differential second-generation current conveyor block with a novel circuit design following by a current subtracting stage. The CMIA is designed and laid out in 130 nm CMOS technology operating under ± 1.2 V supply voltage in Cadence software. The post-layout simulation results show that the CMIA achieves low-frequency voltage and current CMRR- BW of 228.8 dB–10 kHz and 246 dB–10.6 kHz, respectively, with PSRR + /PSRR- of 108.2 dB/99.7 dB, power consumption of 507 µW, and a core area of 0.0015 mm2. The unique quality of the circuit is that, it does not need well-matched active blocks, but inherently improves CMRR, bandwidth, and PSRR; hence it gains an excellent choice for integration.

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Section: Process Voltage and Temperature Variations' Influencesupporting

confidence: 73%

“…The current subtracting stage consists of three improved Wilson current mirrors (M 39 -M 56 ) with cascade active loads (M 57 -M 64 ) [27] as it is shown in Fig. 3.…”

Section: Current-mode Instrumentation Amplifier Circuitmentioning

confidence: 99%

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A current mode instrumentation amplifier with high common-mode rejection ratio designed using a novel fully differential second-generation current conveyor

et al. 2022

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“…The CMIA does not need resistor matching [7]. The details of available IA are included in the reference section, where the following points are observed: ❼ [2], [8], [12], [15], [17], [19] have proposed voltage mode IA, [2], [13], [14], [19], [20], [21] have proposed CMIA, [2], [16], [19] proposed TAM IA, and [2], [9], [19] have proposed TIM-IA.…”

Section: Introductionmentioning

confidence: 99%

VDTA Based Transadmittance Mode Instrumentation Amplifier with Experimental results

Raj

Dutta

Ranjan

et al. 2023

Preprint

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A Voltage Differencing Transconductance Amplifier (VDTA) based trans-admittance mode (TAM) instrumentation amplifier (IA) has been proposed in this article. Proposed IA provides electronically tunable gain with biasing current along with high bandwidth (BW) and CMRR. In addition, the proposed IA does not need any resistor matching. An offset of the presented amplifier circuit can be suppressed using an integrator feedback stage. The functional verification is performed using 0.18 µm TSMC process parameter. Monte Carlo Sampling (MCS) is carried out, thus proving robustness of the circuit. As an application part, a noisy ECG signal is applied to get a clean amplified signal. A CMRR of 131dB-146.8 dB has been obtained depending on different values of the components, and biasing conditions. 30 MHz bandwidth is obtained for the proposed IA. The IA layout required 80 × 49 µm2 areas. The experimental verification has been done using commercially available ICs CA3080.

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A new low voltage low power fully differential CMOS class AB current output stage with unique current drive capability

Abdoli

Azhari

2023

International Journal of Electronics

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A LP, Very High-CMRR, Wide-Bandwidth FDCCII-Based CMIA Adapted to Both Current and Voltage Inputs

Cited by 8 publications

References 14 publications

A current mode instrumentation amplifier with high common-mode rejection ratio designed using a novel fully differential second-generation current conveyor

A current mode instrumentation amplifier with high common-mode rejection ratio designed using a novel fully differential second-generation current conveyor

VDTA Based Transadmittance Mode Instrumentation Amplifier with Experimental results

A new low voltage low power fully differential CMOS class AB current output stage with unique current drive capability

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