The Fujitsu MB40166 and MB40176 are low power 6-bit AD/DA converter which is fabricated with Fujitsu Advanced Bipolar Technology. MB40166 and MB40176 have the same basic circuits and functions, with the only difference being that MB40166 has an independent analog input terminal for the A/D section and a clamp voltage output terminal, while MB40176 has an analog input in the A/D section internally connected with the clamp circuit. Since both models contain a single-chip clamp circuit and a reference voltage circuit, they are ideal for video signal processing.