Abstract
A low-distortion tunable transistor-only integrator suitable for applications in the frequency range approaching the f T of transistors is presented. The circuit is a modified version of the recently introduced companding current-mode integrator utilizing the non-linear base-emitter diffusion capacitance of the BJT. A first-order approximation of the circuit characteristics is explained, followed by a brief discussion on the departure from ideal characteristics due to transistor nonidealities. Experimental and simulated results of practical integrators are given to verify the feasibility of the proposed modified circuit.
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© 2000 Springer Science+Business Media New York
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Worapishet, A., Mahattanakul, J., Toumazou, C. (2000). A Very High-Frequency Transistor-Only Linear Tunable Companding Current-Mode Integrator. In: Serdijn, W.A., Mulder, J. (eds) Research Perspectives on Dynamic Translinear and Log-Domain Circuits. The Springer International Series in Engineering and Computer Science, vol 550. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6414-7_6
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DOI: https://doi.org/10.1007/978-1-4757-6414-7_6
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