Shetty, 2014, A survey of circuit level techniques for designing ultra low power, low frequency OTA, Int. J. Comput. Inf. tecchnol., 03, 1274
Khateb, 2013, A survey on non-conventional techniques for low-voltage, low-power analog circuit design, Radioengineering, 22, 415
A. Guzinski, M. Bialko, J.C. Matheau, Body driven differential amplifier for application in continuous-time active-C filter, in: Proceedings of European conference Circuit Theory and Design (ECCTD), 1987, pp. 315–320.
Y. Haga, H.Z. Hoseini, L. Berkovi, I. Lale, Design of a 0.8V fully differential CMOS OTA using the bulk-driven technique, in: Proceedings of IEEE International Symposium on Circuit and Systems (ISCAS), 2005, pp. 220–223.
Blalock, 1998, Designing 1-V op amps using standard digital CMOS technology, IEEE Trans. Circuit Syst. II: Analog Digit. Signal Process., 45, 769, 10.1109/82.700924
raikos, 2010, 0.8V bulk-driven operational ammpifier, Analog Integr. Circuits Signal Process., 63, 425, 10.1007/s10470-009-9425-4
Tai, 2006
Carrillo, 2007, 1-V rail-to-rail CMOS op-amp with improved bulk-driven input stage, IEEE J. Solid State Circuits, 42, 508, 10.1109/JSSC.2006.891717
Carrillo, 2011, Transconductance enhancement in bulk-driven input stages and its applications, Analog. Integr. Circuits Signal Process., 68, 207, 10.1007/s10470-011-9603-z
J.M. Carrillo, J.F. Duque-Carrillo, G. Torelli, 1-V Continuously tunable CMOS bulk-driven transconductor for gm-C filters, in: Proceedings of IEEE ISCAS, 2008, pp. 896–899.
Zuo, 2013, Low-voltage bulk- driven operational amplifier with improved transconductance, IEEE Trans. Circuits Syst., 60, 2084, 10.1109/TCSI.2013.2239161
Yavari, 2014, A single-stage operational amplifier with enhanced transconductance and slew rate for switched-capacitor circuits, Analog Integr. Circuits Signal Process., 79, 589, 10.1007/s10470-014-0292-2
Colletta, 2014, A 0.25-V 22-nS symmetrical bulk-driven OTA for low-frequency Gm-C applications in 130-nm digital CMOS process, Analog Integr Circuits Signal Process., 81, 377, 10.1007/s10470-014-0385-y
Zhao, 2015, Transconductance improvement method for low-voltage bulk-driven input stage, Integr. VLSI J., 49, 98, 10.1016/j.vlsi.2014.11.005
Rezaei, 2011, Ultra low voltage, high performance operational transconductance amplifier and its applications in tunable Gm-C filters, Microelectron. J., 42, 827, 10.1016/j.mejo.2011.04.012
Ferreira, 2014, A 60-dB gain OTA operating at 0.25-V power supply in 130-nm digital CMOS process, IEEE Trans. Circuits Syst., 61, 1609, 10.1109/TCSI.2013.2289413
Yodtean, 2013, Sub 1-V highly-linear low-power class-AB bulk-driven tunable CMOS transconductor, Analog Integr. Circuits Signal Process., 75, 383, 10.1007/s10470-013-0044-8
V. Bhadauria, K. Kant, S. Banerjee, A tunable transconductor with high linearity, in: Proceedings of IEEE Asia Pacific Conference on Circuits and Systems ( APCCAS), 2010, pp. 5–8.
Soares, 2014, A low-transconductance OTA with improved linearity suitable for low-frequency gm-C filters, Microelectron. J., 45, 1499, 10.1016/j.mejo.2014.07.008
Joel Gak, 2014, Nanopower OTAs with improved linearity and low input offset using bulk degeneration, IEEE Trans. Circuits Syst., 61, 689, 10.1109/TCSI.2013.2284002
Rezaei, 2015, Transconductance linearization based on adaptive biasing of source-degenerative MOS transistors, Circuits Syst. Signal Process., 34, 1149, 10.1007/s00034-014-9902-6
T. Sharan, V. Bhadauria, Ultra-low-power bulk and gate-driven, class AB, subthreshold transconductor, in: Proceedings of the 2nd International Conference on Signal Processing & Integrated Networks (SPIN), 2015, pp. 921–926, doi: 10.1109/SPIN.2015.7095336.
Chatterjee, 2005, 0.5 V analog circuit techniques and their application in OTA and filter design, IEEE J. solid state circuits, 40, 2373, 10.1109/JSSC.2005.856280
S. Chatterjee, K.P. Pun, N. Stanic, Y. Tsividies, P. Kinget, Analog Circuit Design Techniques at 0.5V, AICSP, Springer, pp.1–156.
Mohammad, 2011, 1-V Process-insensitive current-scalable two-stage opamp with enhanced DC gain and settling behavior in 65-nm digital CMOS, IEEE J. Solid state Circuits., 46, 660, 10.1109/JSSC.2010.2100270
Zhao, 2015, Low-voltage process-insensitive frequency compensation method for two-stage OTA with enhanced DC gain, Int. J. Electron. Commun. AEU, 69, 685, 10.1016/j.aeue.2014.12.003
Carvajal, 2005, The flipped voltage follower: A useful cell for low-voltage, low-power circuit design, IEEE Trans. Circuits Syst., 52, 1276, 10.1109/TCSI.2005.851387
Allen, 2012, 228
Binkley, 2008, 51, 47
Sansen, 2006, 184
Ferreira, 2002, An ultra-low-voltage ultra-low-power weak inversion composite MOS transistor: concept and applications, IEICE Trans. Fundam. Commun. Electron. Inf. Syst., 85, 1
Ferreira, 2007, An ultra-low-voltage ultra-low-power CMOS Miller OTA with rail-to-rail input/output swing, IEEE Trans. Circuits Syst. II Express Briefs, 54, 843, 10.1109/TCSII.2007.902216
Cotrim, 2012, An ultra-low-power CMOS symmetrical OTA for low-frequency Gm-C applications, Analog. Intgr Circuits Signal Process., 71, 275, 10.1007/s10470-011-9618-5
Akbari, 2016, Systematic design of alalog integrated circuits using ant colony algorithm based on noise optimization, Analog. Integr. Circ. Sig Process., 86, 327, 10.1007/s10470-015-0682-0
Akbari, 2015, A 0.6-V, 0.4μW bulk-driven operational amplifier with rail-to-rail input/output swing, Analog. Integr. Circuits Signal Process., mixed signal Lett., 1
Magnelli, 2014, Design of a 75-nW, 0.5-V subthreshold complementary metal-oxide-semiconductor operational amplifier, Int. J. Circuit Theor. Appln, 44, 967, 10.1002/cta.1898
Valero Bernal, 2012, An ultralow-power, low-voltage class AB fully differential Opamp for long-life autonomous portable equipment, IEEE Trans. Circuits Syst. II, Expr. Br., 59, 643, 10.1109/TCSII.2012.2213361
Alfio, 2015, Design methodology of subthreshold three-stage CMOS OTA suitable for ultra-low-power low- area and high driving capability, IEEE Trans. Circuits Syst. I, 62, 1453, 10.1109/TCSI.2015.2411796
Akbari, 2015, Improving power efficiency of a two-stage operational amplifier for biomedical applications, Analog. Integr. Circuits Signal Process., 84, 173, 10.1007/s10470-015-0542-y
Yu, 2007, A wide tuning range Gm-C continuous-time analog filter, IEEE Trans. Circuits Syst. I, 54, 713, 10.1109/TCSI.2007.890614
Huelsman, 1993
Kulej, 2015, 0.4-V bulk-driven differential-difference amplifier, Microelectron. J., 46, 362, 10.1016/j.mejo.2015.02.009
Kulej, 2015, 0.4-V bulk-driven operational amplifier with improved input stage, Circuits Syst. Signal Process., 34, 1167, 10.1007/s00034-014-9906-2
Hung, 1997, A low-voltage, low-power, CMOS fifth order elliptic Gm-C filter for base band mobile, wireless communication, IEEE Trans. Circuits Syst. Video Technol., 7, 584, 10.1109/76.611170
Tang, 2015, A sub-1-V bulk-driven opamp with an effective transconductance-stabilizing techniques, IEEE Trans. Circuits Syst. II, 62, 1018, 10.1109/TCSII.2015.2455471
Sedra, 2013, 1097