Single-ended progressive analog-to-digital converter

A single-ended progressive analog-to-digital converter includes a first digital-to-analog converter having a first capacitor associated with a most significant bit of an output code and having a second capacitor associated with other bits of the output code; and a second digital-to-analog converter having a first capacitor associated with a most significant bit of the output code and having a second capacitor associated with other bits of the output code. The lower plate of the first capacitor of the second digital-to-analog converter is connected to a negative reference voltage for all periods. 本发明是一种单端循序渐进式模拟至数字转换器，包含第一数字至模拟转换器，具第一电容器关联于输出码的最高有效位元，且具第二电容器关联于输出码的其他位元；及第二数字至模拟转换器，具第一电容器关联于输出码的最高有效位元，且具第二电容器关联于输出码的其他位元。第二数字至模拟转换器的第一电容器的下板于所有时期连接至负参考电压。