Low voltage techniques for switched-current filters
John B. Hughes, A. Worapishet, Rungsimant Sitdhikorn · Institution of Engineering and Technology eBooks · 2002
We have established a viable approach for low voltage filters using the switched current technique. First, we showed that switched currents, unlike switched capacitors, suffer no performance degradation as the supply voltage is lowered. When the supply reaches about IV, class AB switched currents can be expected to outperform switched capacitors.