公开(公告)号：US07355543B2

公开(公告)日：2008-04-08

申请号：US11557694

申请日：2006-11-08

申请人： Il Kwon-Chang ,  Min-Gwang Kang

发明人： Il Kwon-Chang ,  Min-Gwang Kang

IPC分类号： H03M1/66

CPC分类号： H03M1/662 ,  H03M1/667 ,  H03M1/687

摘要： A digital-to-analog converter using capacitors and an operational amplifier, which can be highly integrated due to its small area and which can rapidly perform a stable converting operation. The digital-to-analog converter includes a data input unit, a first conversion unit, a second conversion unit, and a signal output unit. When digital data is input to the data input unit, the data input unit is connected to the first conversion unit or the second conversion unit. The first conversion unit charges a first charging capacitor with a voltage corresponding to the input digital data and distributes the charged charges to a first distribution capacitor. The second conversion unit charges a second charging capacitor with the voltage corresponding to the input digital data and distributes the charged charges to a second distribution capacitor. The signal output unit outputs an analog data signal corresponding to the voltage across the first distribution capacitor or the voltage across the second distribution capacitor in response to a select control signal.

摘要翻译： 一种使用电容器和运算放大器的数模转换器，由于其面积小，可以高度集成，可以快速执行稳定的转换操作。 数模转换器包括数据输入单元，第一转换单元，第二转换单元和信号输出单元。 当数字数据被输入到数据输入单元时，数据输入单元连接到第一转换单元或第二转换单元。 第一转换单元用对应于输入数字数据的电压对第一充电电容器充电，并将充电电荷分配给第一分配电容器。 第二转换单元对与输入数字数据相对应的电压对第二充电电容器充电，并将充电电荷分配给第二分配电容器。 信号输出单元响应于选择控制信号输出对应于第一分配电容器两端的电压的模拟数据信号或第二分配电容器两端的电压。

公开(公告)号：US20070194964A1

公开(公告)日：2007-08-23

申请号：US11557694

申请日：2006-11-08

申请人： Il-Kwon Chang ,  Min-Gwang Kang

发明人： Il-Kwon Chang ,  Min-Gwang Kang

IPC分类号： H03M1/66

CPC分类号： H03M1/662 ,  H03M1/667 ,  H03M1/687

摘要： A digital-to-analog converter using capacitors and an operational amplifier, which can be highly integrated due to its small area and which can rapidly perform a stable converting operation. The digital-to-analog converter includes a data input unit, a first conversion unit, a second conversion unit, and a signal output unit. When digital data is input to the data input unit, the data input unit is connected to the first conversion unit or the second conversion unit. The first conversion unit charges a first charging capacitor with a voltage corresponding to the input digital data and distributes the charged charges to a first distribution capacitor. The second conversion unit charges a second charging capacitor with the voltage corresponding to the input digital data and distributes the charged charges to a second distribution capacitor. The signal output unit outputs an analog data signal corresponding to the voltage across the first distribution capacitor or the voltage across the second distribution capacitor in response to a select control signal.

摘要翻译： 使用电容器和运算放大器的数/模转换器，由于其面积小，可以高度集成，可以快速执行稳定的转换操作。 数模转换器包括数据输入单元，第一转换单元，第二转换单元和信号输出单元。 当数字数据被输入到数据输入单元时，数据输入单元连接到第一转换单元或第二转换单元。 第一转换单元用对应于输入数字数据的电压对第一充电电容器充电，并将充电电荷分配给第一分配电容器。 第二转换单元对与输入数字数据相对应的电压对第二充电电容器充电，并将充电电荷分配给第二分配电容器。 信号输出单元响应于选择控制信号输出对应于第一分配电容器两端的电压的模拟数据信号或第二分配电容器两端的电压。