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    • 1. 发明申请
    • DIGITAL/ANALOG CONVERTER
    • 数字/模拟转换器
    • US20060284752A1
    • 2006-12-21
    • US11379428
    • 2006-04-20
    • Byung KimWon ChoiYoun LeeChan Park
    • Byung KimWon ChoiYoun LeeChan Park
    • H03M1/66
    • H03M1/682H03M1/765
    • The present invention relates to a digital/analog converter, in which a divided-voltage generating section and a divided-voltage selecting section are added to a conventional digital/analog converter so that a digital signal with high resolution of more than 10 bits can be processed and the size of an IC can be reduced. The digital/analog converter includes a first divided-voltage generating section which divides a reference supply voltage through the voltage distribution; a decoder section which receives a digital signal so as to output a decoded selection signal; a first divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided voltages generated from the first divided-voltage generating section on the basis of the selection signal output from the decoder section; a second divided-voltage selecting section which selects and outputs a plurality of divided voltages among the divided-voltages output from the first divided-voltage selecting section on the basis of the selection signal output from the decoder section; a second divided-voltage generating section which divides the plurality of divided-voltages output from the second divided-voltage selecting section; a third divided-voltage selecting section which selects a predetermined voltage among the divided-voltages output from the second divided-voltages generating section on the basis of the selection signal output from the decoder; and a voltage output section which outputs the predetermined voltage selected from the third divided-voltage selecting section.
    • 数字/模拟转换器技术领域本发明涉及数字/模拟转换器,其中分压产生部分和分压选择部分被添加到传统的数/模转换器,使得具有大于10位的高分辨率的数字信号可以是 并且可以减小IC的尺寸。 数字/模拟转换器包括:第一分压产生部,其通过电压分配来划分参考电源电压; 解码器部分,其接收数字信号以输出解码的选择信号; 第一分压电压选择部,其根据从解码部输出的选择信号,选择并输出从第一分压产生部生成的分压电压中的多个分压; 第二分压选择部,根据从解码部输出的选择信号,选择并输出从第一分压电压选择部输出的分压电压中的多个分压; 第二分压电压生成部,其对从第二分压电压选择部输出的多个分压进行分压; 第三分压选择部,其根据从解码器输出的选择信号,选择从第二分压产生部输出的分压中的规定电压; 以及电压输出部,输出从第三分压电压选择部选择的预定电压。