Provided is a D/A converter circuit which copes with high-bit digital signals and has favorable linearity and small occupation area. In a capacitive divider type DAC, capacitances are simply provided in a one-to-one relationship correspondingly to lower order bit digital signals instead of providing...http://www.google.ca/patents/US6600436?utm_source=gb-gplus-sharePatent US6600436 - D/A converter having capacitances, tone voltage lines, first switches, second switches and third switches
