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A Linear MOS Transconductor Using Source Degeneration and Adaptive Biasing

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ko-Chi Kuo, Adrian Leuciuc

Editorial: IEEE Trans. on Circuits and Systems- Part II, vol. 48, no. 10, p.937-943, 2001.

Rezumat:

This paper presents a new configuration for linear MOS voltage-to-current converters (transconductors). The proposed circuit combines two previously reported linearization methods. The novel topology achieves 60dB linearity for a input dynamic range up to $1V_{pp}$ supply voltage for the balanced inputs with slightly decreasing performance in the unbalanced case. The linearity is preserved during the tuning process for a moderate range of transconductance values. The theoretical results are verified by both computer simulations and experiments.

Cuvinte cheie: continuous-time filters, linear transconductors