Abstract
This paper describes the design of a high-transconductance, wide-band, temperature-insensitive bipolar differential voltage-to-current converter, the transconductance of which is determined by a chosen degeneration resistor. Detailed illustrations of current and voltage traces are included to clarify circuit operation. Comparison with previously published designs shows that this converter provides better linearity, with very low temperature sensitivity and excellent transconductance predictability. Simulation results show that the proposed circuit, with a nominal transconductance of 5 mS, has a Total Harmonic Distortion (THD) better than −70 dB at 10 MHz, with a degeneration resistor of 400 Ω over an input voltage range of 350 mV for supply voltages of ±2.5 V. The analysis and simulation comparisons are in good agreement.
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References
F. Behbahani, A. Fotowat, S. Navid, R. Gaethke, M. Delurio, A low distortion bipolar mixer for low voltage direct up-conversion and high IF systems. IEEE J. Solid State Circuits 32(9), 1446–1450 (1997)
R.A. Blauschild, An open loop programmable amplifier with extended frequency range. IEEE J. Solid State Circuits Sc-16(6), 626–633 (1981)
R. Caprio, Precision differential voltage-current converter. Electron. Lett. 9(6), 147–148 (1973)
B. Gilbert, The multi-tanh principle: a tutorial overview. IEEE J. Solid State Circuits 33(1), 2–17 (1998)
P.R. Gray, P.J. Hurst, S.H. Lewis, R.G. Meyer, Analysis and Design of Analog Integrated Circuits, 4th edn. (Wiley, New York, 2001), Chap. 3, pp. 215–224
P.R. Gray, P.J. Hurst, S.H. Lewis, R.G. Meyer, Analysis and Design of Analog Integrated Circuits, 4th edn. (Wiley, New York, 2001), p. 24
P.R. Gray, P.J. Hurst, S.H. Lewis, R.G. Meyer, Analysis and Design of Analog Integrated Circuits, 4th edn. (Wiley, New York, 2001), Chap. 1, p. 50
M. Koyama, T. Arai, H. Tanimoto, Y. Yoshida, A 2.5-V active low-pass filter using all-n-p-n Gilbert cells with a 1-Vp-p linear input range. IEEE J. Solid State Circuits 28(12), 1246–1253 (1993)
R. Kumar, V. Kursun, A design methodology for temperature variation insensitive low power circuits, in Proceedings of the ACM/SIGDA Great Lakes Symposium on VLSI, May 2006, pp. 410–415
G.A.S. Machado, Low-power HF microelectronics: a unified approach, in IEE Circuits and Systems, vol. 8 (Institution of Electrical Engineers, Stevenage, 1996), pp. 837–927, Chap. 23
S. Pookaiyaudom, T. Kuhanont, High-performance differential quartets. Proc. IEEE 65(12), 1721–1723 (1977)
P.A. Quinn, A cascode amplifier nonlinearity correction technique, in IEEE ISSCC (1981)
W. Sansen, Distortion in elementary transistor circuits. IEEE Trans. Circuits Syst. II Analog Digit. Signal Process. 46(3), 315–325 (1999)
J. Silva-Martinez, M.S.J. Steyaert, W.M. C Sansen, A large signal very low-distortion transconductor for high-frequency continuous-time filters. IEEE J. Solid-State Circuits 26(7), 946–955 (1999)
Y.P. Tsividis, Operation and Modeling of the MOS Transistor (McGraw-Hill, New York, 1999)
T. Tsukahara, M. Ishikawa, M. Muraguchi, A 2-V 2-GHz Si-Bipolar direct-conversion quadrature modulator. IEEE J. Solid State Circuits 31(2), 263–267 (1996)
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Mathew, M., Hayatleh, K. & Hart, B.L. A High-Transconductance Voltage-to-Current Converter Design. Circuits Syst Signal Process 29, 1123–1140 (2010). https://doi.org/10.1007/s00034-010-9193-5
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DOI: https://doi.org/10.1007/s00034-010-9193-5