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A universal linearization technique applicable to fast, nonlinear voltage-to-current converters (VCC) is presented. The method is based on a new circuit architecture combining a set of given basic VCCs with resistors which operate as linear current-to-voltage converters (CVC). The linearity of the resulting circuit is essentially improved compared to that of a single basic VCC with only small losses in conversion speed. Operational amplifiers are not required so that this approach is also applicable at low supply voltages. Experimental data are shown which demonstrate an improvement in linearity of approximately one decade.
Date of Conference: 15-17 June 2000