Programmable Input Mode Instrumentation Amplifier Using Multiple Output Current Conveyors

• Autorzy: Pankiewicz B.

Identyfikatory

DOI

10.1515/mms-2017-0017

• Języki publikacji: EN

Abstrakty

EN

In this paper a programmable input mode instrumentation amplifier (IA) utilising second generation, multiple output current conveyors and transmission gates is presented. Its main advantage is the ability to choose a voltage or current mode of inputs by setting the voltage of two configuration nodes. The presented IA is prepared as an integrated circuit block to be used alone or as a sub-block in a microcontroller or in a field programmable gate array (FPGA), which shall condition analogue signals to be next converted by an analogue-to-digital converter (ADC). IA is designed in AMS 0.35 µm CMOS technology and the power supply is 3.3 V; the power consumption is approximately 9.1 mW. A linear input range in the voltage mode reaches ± 1.68 V or ± 250 µA in current mode. A passband of the IA is above 11 MHz. The amplifier works in class A, so its current supply is almost constant and does not cause noise disturbing nearby working precision analogue circuits.

Słowa kluczowe

EN

instrumentation amplifier; current conveyor; programmable analogue circuit

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2017
• Tom: Vol. 24, nr 1
• Strony: 79--89
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Pankiewicz B.

• Gdańsk University of Technology, Faculty of Electronics, Telecommunication and Informatics, G. Narutowicza 11/12, 8-233 Gdańsk, Poland

Bibliografia

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• [2] Cini, U., Arslan, E. (2015). A High Gain and Low-Offset Current-Mode Instrumentation Amplifier Using Differential Difference Current Conveyors. Proc of IEEE Int. Conf. on El. Cir. and Syst., Egypt, 69-72.
• [3] Schaffer, V., Snoeij, M., Ivanov, M. Trifonov D. (2009). A 36 V Programmable Instrumentation Amplifier With Sub-20 V Offset and a CMRR in Excess of 120 dB at All Gain Settings. IEEE Journal of Solid-State Circuits, 44(7), 2036-2046.
• [4] Tang, A. (2005). Enhanced Programmable Instrumentation Amplifier. Proc of IEEE Sensors Conf., Irvine, USA, 955-958, CD-ROM.
• [5] Vyroubal, D. (1990). Instrumentation Amplifier with Digital Gain Programming and Common-Mode Rejection Trim. IEEE Trans. On Instr. and Meas., 39(4), 588-593.
• [6] Sedra, A., Smith, K. (1970). A second-generation current conveyor and its applications. IEEE Transactions on Circuit Theory, 17(1), 132-134.
• [7] Ismail, A.M., Soliman, A.M. (2000). Low-power CMOS current conveyor. Electronics Letters, 36(1), 7-8.
• [8] Horng, J. W., Hou, C.L., Chang, C.M. (2008). Multi-input differential current conveyor, CMOS realisation and application. IET Circuits, Devices & Systems, 2(6), 469-475.
• [9] Becvar, D., Vrba, K., Zeman, V., Musil, V. (2000). Novel universal active block: a universal current conveyor. Proc. of IEEE Int. Symp. on Circuits and Systems. Geneve, Switzerland, 471-474.
• [10] Fani, R., Farshidi, E. (2013). New systematic two-graph-based approach of active filters employing multiple output current controlled conveyors. IET Circuits, Devices & Systems, 7(6), 326-336.
• [11] Pankiewicz, B. (2016). Multiple output CMOS current amplifier. Bulletin of the Polish Academy of Sciences, Technical Sciences, 64(2), 301-306.
• [12] Pelgrom, M.J.M., Duinmaijer, A.C.J., Welbers, A.P.G. (1989). Matching properties of MOS transistors, IEEE Journal of Solid-State Circuits, 24(5), 1433-1439.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).