DATA CONVERTING APPARATUS IN SEMICONDUCTOR INTEGRATED CIRCUIT

摘要

PURPOSE: A data converting apparatus in a semiconductor integrated circuit is provided to improve the stability of operation and the efficiency of an area by generating an analog signals through the phase difference of a clock. CONSTITUTION: A first differential amplifier(110) generates a first amplified clock by differently internal positive and negative clock. A first holding unit(120) generates a first level signal by holding a first amplification clock. A second amplification unit differently amplifies internal positive clock and a negative clock to generate a second amplification clock. A second holding unit generates a second level signal by holding the second amplification clock. A selection unit selectively outputs a first level signal or a second level signal as converted data.