Single EX-CCCII based electronically tunable current mode instrumentation amplifier

Authors

  • Priyanka Singh 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 of an electronically tunable instrumentation amplifier. The current mode design approach is used to obtain 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. Due to the high output impedance of the circuit, 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 of EX-CCCII. The proposed instrumentation amplifier offers good frequency performance with a wide bandwidth for differential gain and CMRR. The effect due to non-idealities of EX-CCCII and its parasitic elements is also analysed. To validate the proposed instrumentation amplifier, various simulations are performed using the CADENCE VIRTUOSO SPECTRE simulator using 0.18 µm CMOS technology parameters.

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Published

2023-03-29

Issue

Engineering Review, Vol. 42, No. 3

Section

Articles

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