The MN6557A and MN6557AS are CMOS 10-bit D/A converters with a maximum conversion rate of 30 MSPS. High precision has been achieved by the combined use of a matrix cell system and weighted current system. They also feature low power consumption owing to the use of a CMOS process, and operate on a single power supply of 5V, and have a TTL input level. These devices are suitable for digitalization of image processing in video, TV, and similar applications.