Multi-Point Correction Method in CMOS Current-Mode Function Design 林國珍,鄭智仁,陳竹一
Electronics Engineering Engineering
[email protected] Abstract
We propose a multi-point correction method to
design a CMOS current-mode function with high input dynamic range. The dynamic range is dependent on the number of
correcting circuits. Consider the accuracy, we can properly select the turn-on current in the correcting circuit. The exponential
circuit for a design example, equipped with six correcting circuits, has a linearity of 39.5dB for linearity error less than 0.3 dB and has a large input dynamic range from -60 uA to 128 uA.
Keyword：current-mode circuit, Taylor's expansion, correction circuit, analog circuit design
