Journal Press India^®

Author Details ( * ) denotes Corresponding author

This paper presents an analog square root circuit using single Operational Transresistance Amplifier (OTRA). It can be used to obtain the square root of the low input voltage. This circuit does not use any external passive component and hence is suitable for integration. The proposed circuit is verified with the help of simulations using 0.18µm CMOS parameters on PSPICE. The theoretical observations are in accordance with the simulation result.

Keywords

Analog Square Root Circuit; OTRA; Low Voltage.

1. SParsnejad, Y Hu, H. Wan, E Ashoori, AJ Mason. Wide dynamic range multi-channel electrochemical instrument for in-field measurements, IEEE Sensors2016


2. A Hyogo, Y Fukutomi, K Sekine. Low Voltage Four-Quadrant Analog Multiplier Using Square-Root Circuit Based On Cmos Pair, IEEE International Symposium on Circuits and Systems,1999


3. K Kimura. A Design Technique for an MOS Linear Transconductance Amplifier Consisting of a Source-Coupled Pair and Square-Root Circuits, The 10th Karuizawa Work- shop on Circuits and Systems (Japan), 1997, 25-29,


4. IM Filanovsky, HP Baltes. Simple CMOS analog square-rooting and squaring circuits , IEEE Transactions on Circuits and Systems, 39(4).


5. lY Fukutomi, A Hyogo, K Sekine. A New Square- Root Circuit and Its Application to a Source-Coupled Pair, Proceedings of NOLTA’98, 2, 1998, 555-558


6. KNSalamaand, AMSoliman. CMOS operational transresistance amplifier for analog signal processing, Microelectronics Journal, 30(3), 1999, 235–245


7. R Pandey, N Pandey, BSriram, SK Paul. Single OTRA Based Analog Multiplier and Its Applications, International Scholarly Research Network ISRN Electronics, Article ID 890615, 2012,


8. H Mostafa, AM Soliman. A modified CMOS realization of the operational transresistance amplifier (OTRA). Frequenz, 60(3-4), 2006, 70–76