Original scientific paper
https://doi.org/10.30765/er.1954
Single EX-CCCII based electronically tunable current mode instrumentation amplifier
Priyanka Singh
orcid.org/0000-0003-3760-6666
; Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 212404, India
Rajendra Kumar Nagaria
; Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 212404, India
Abstract
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.
Keywords
analog circuits; current mode approach; EX-CCCII; instrumentation amplifier; electronically tunable
Hrčak ID:
291874
URI
Publication date:
18.12.2022.
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