A low-mismatched instrumentation amplifier for ECG front-end readout circuit

Shen, Ding-Lan; Hsu, Yung-Yi

doi:10.1007/s10470-022-02018-x

Cited by 1 publication

(2 citation statements)

References 14 publications

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“…Some IAs in the literature have poor frequency responses. The IAs proposed in [8, 11, 12, 15-19, 23-25, 26, 28, 30] have very low CMRR bandwidth whereas, circuits given in [7,11,17,27,29] have low differential gain bandwidth.…”

Section: ____________________________________________________________...mentioning

confidence: 99%

“…With the advancement in the current mode design approach, many current mode active building blocks are introduced in the literature . Some of the mostly used active blocks are Second Generation Current Conveyor (CCII) [7,23,29], Current Controlled Current Conveyor (CCCII) [8,13,14], Differential Voltage Current Conveyor (DVCC) [9,24], Differential Difference Current Conveyor (DDCC) [10,30], Operational Floating Current Conveyor (OFCC) [11,15,16,28], Operational Trans-resistance Amplifier (OTRA) [12], Flipped Voltage Follower (FVF) [17], Current Operational Amplifier (COA) [18,19], Current Mirror [20], Current Differencing Trans-resistance Amplifier (CDTRA) [21], Current Follower Differential Input Transconductance Amplifier (CFDITA) [22], Extra-X Current Controlled Current Conveyor (EX-CCCII) [25],…”

Section: Introductionmentioning

confidence: 99%

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Single EX-CCCII based electronically tunable current mode instrumentation amplifier

Singh

Nagaria

2022

Eng. rev. (Online)

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The purpose of this study is to present a new design for an electronically tunable instrumentation amplifier. The current-mode design approach is used for the proposed circuit. The proposed current-mode instrumentation amplifier employs a single Extra-X Current Controlled Current Conveyor (EX-CCCII) and a grounded resistor. This circuit design is very simple and suitable for IC integration. Because of the circuit's high output impedance, it can be cascaded with other current-mode circuits without the need for a buffer. In addition, this circuit is electronically tunable with the bias current from EX-CCCII. The proposed instrumentation amplifier provides good frequency performance with a wide bandwidth for differential gain and CMRR. The effects of non-idealities of EX-CCCII and its parasitic elements are also analysed. To validate the proposed instrumentation amplifier, various simulations are performed with the CADENCE VIRTUOSO SPECTRE simulator using 0.18 µm CMOS technology parameters.

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