A voltage-controlled current source in 0.35 μm BiCMOS technology is presented. A linear relationship between the control voltage and the output current is achieved by using first generation current conveyors in configuration of simple voltage-to-current converters. The control voltages of the DC and the AC output currents are completely independent of each other. The current source is intended for the generation of small currents in a sub-microampere range and in a frequency range of a few hundreds of megahertz. The measured and simulated results confirm that the smallest amplitudes of the generated currents are down to 100 nA, with a single supply voltage of 1.3 V. The small-signal bandwidth ranges from 15 up to 900 MHz.
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Tadić, N., Marchlewski, A., & Zimmermann, H. (2009). A 122 TΩ Hz transimpedance bandwidth product BiCMOS optical sensor front-end with a 54.7 dB voltage-controlled photo-sensitivity range. Analog Integrated Circuits and Signal Processing, 61, 19–33.
Tadić, N., Goll, B., & Zimmermann, H. (2017). Laser diode current driver with (1 − t/T)−1 time dependence in 0.35 μm BiCMOS technology for quantum random number generators. IEEE Transactions on Circuits and Systems, part II: Express: Briefs, 64, 510–514.
Nedungadi, A. (1981). Accurate submicroampere controlled current source. Electronics Letters, 17, 320–322.
Kalenteridis, V., Vlassis, S., & Siskos, S. (2012). 1.5-V CMOS exponential current generator. Analog Integrated Circuits and Signal Processing, 72, 333–341.
Zhang, G., Saw, S., Liu, J., Sterrantino, S., Johnson, D. K., & Jung, S. (2006). An accurate current source with on-chip self-calibration circuits for low-voltage current-mode differential drivers. IEEE Transactions on Circuits and Systems, part I: Regular Papers, 53, 40–47.
Serrano-Gotarredona, T., Linares-Barranco, B., & Andreou, A. G. (1999). Very wide range tunable CMOS/bipolar current mirrors with voltage clamped input. IEEE Transactions on Circuits and System, Part: Fundamental Theory and Applicatons, 46, 1398–1407.
Dai, S., & Rosenstein, J. K. (2017). A 15-V bidirectional current clamp circuit for integrated patch clamp electrophysiology. IEEE Transactions on Circuits and Systems, Part II: Express Briefs, 64, 1287–1291.
Sedra, A. S., & Roberts, G. (1990). Current conveyor theory and practice. In C. Toumazou, F. J. Lidgey, & D. G. Haigh (Eds.), Analogue IC design: The current-mode approach (Chap. 3, pp. 93–126). Stevenage: Peter Peregrinus.
Wilson, B. (1989). Performance analysis of current conveyors. Electronics Letters, 25, 1596–1598.
Gray, P. R., Hurst, P. J., Lewis, S. H., & Meyer, R. G. (2001). Analysis and design of analog integrated circuits (4th ed.). New York: Wiley.
Carusone, T. C., Johns, D., & Martin, K. (2012). Analog integrated circuit design (2nd ed.). New York: Wiley.
de Wit, M. (1995). Temperature independent resistor. U.S. Patent 5448103 A.
Gregoire, B. R., & Moon, U.-K. (2007). Process-independent resistor temperature-coefficients using series/parallel and parallel/series composite resistors. In Proceedings of international symposium on circuits and systems (pp. 2826–2829).
Chiang, Y.-H., & Liu, S.-I. (2013). A submicrowatt 1.1-MHz CMOS relaxation oscillator with temperature compensation. IEEE Transactions on Circuits and Systems, part II: Express Briefs, 60, 837–841.
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Tadić, N., Dervić, A., Erceg, M. et al. 1.3 V supply voltage, high bandwidth, 100 nA minimum amplitude BiCMOS voltage-controlled current source. Analog Integr Circ Sig Process 98, 209–219 (2019). https://doi.org/10.1007/s10470-018-1360-9