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In this paper, a new design of a current mode instrumentation amplifier (CMIA) is presented using a single differential voltage extra-X current controlled current conveyor (DV-EXCCCII) and a grounded resistor. Therefore, this circuit design is very simple and suitable for IC integration. The proposed circuit of instrumentation amplifier has high output impedance so it is easily cascadable with other current mode circuits without buffer requirement. Furthermore, the proposed circuit is electronically tunable with the bias current of the active element used. This circuit offers good frequency performance with wide differential gain and CMRR bandwidth. The non-idealities and parasitic effects of the proposed circuit are also investigated. To validate the proposed instrumentation amplifier, various simulations are performed using the CADENCE VIRTUOSO SPECTRE simulator using 0.18 µm CMOS technology parameters. [ABSTRACT FROM AUTHOR]

This paper reports two filter circuits based on Differential Voltage Extra-X Current Controlled Current Conveyor (DV-EXCCCII). The first proposed circuit is a voltage-mode first-order universal filter that employs one DV-EXCCCII, one resistor, and one grounded capacitor. This circuit can realise all standard first-order filters, that is, low-pass, high-pass and all-pass filter. The second proposed circuit is a first-order multimode universal filter that employs a single DV-EXCCCII. This circuit can realise filter in current-mode, voltage-mode and trans-admittance mode with a single capacitor. However, a trans-impedance mode universal filter is realised with an additional resistor. Furthermore, the filter is electronically tunable with the bias current of DV-EXCCCII. The proposed filter circuits are verified using the SPECTRE simulator of CADENCE VIRTUOSO tool in 0.18 µm UMC CMOS technology parameters. [ABSTRACT FROM AUTHOR]

This paper reports a first-order voltage mode and trans-admittance mode universal filter from the same circuit structure. This configuration employs a single Differential Voltage Extra-X Current Controlled Current Conveyor (DV-EXCCCII) and one capacitor to realise a first-order Low Pass Filter (LPF), High Pass Filter (HPF), and All Pass Filter (APF) in voltage mode and trans-admittance mode. The DV-EXCCCII is an electronically tunable analog block, so the filter response can be varied with the bias current of the DV-EXCCCII. No matching constraints are necessary to realise the proposed filter. The sensitivity is found to be low because of passive components and also due to non-idealities. The reported circuit configuration is implemented through CADENCE VIRTUOSO and verified in SPECTRE using 0.18 µm UMC CMOS technology process parameters. [ABSTRACT FROM AUTHOR]

A new analog block, Differential Voltage Extra-X Current Controlled Conveyor (DV-EXCCCII) based current mode universal filter configuration is introduced in this paper. Only one current mode analog block DV-EXCCCII, three grounded components are used to design proposed filter configuration. This circuit provides high output impedance, which allows cascading feature to circuit without need of extra buffer circuit. This configuration realise all five (Low Pass, High Pass, All Pass, Band Pass and Band Reject) second-order filter functions with an appropriate selection of input. Bias current of DV-EXCCCII provides the electronic tuning characteristic to proposed circuit. Sensitivity due to passive components and non-idealities of the analog block is low and magnitude is below unity. The proposed filter circuit configuration is designed in CADENCE and simulated with SPECTRE using 180 nm UMC CMOS process technology. [ABSTRACT FROM AUTHOR]