发明名称 |
Decoder architecture with sub-thermometer codes for DACs |
摘要 |
A digital-to-analog converter (DAC) for converting a digital signal to an analog signal includes a first thermometer decoder and a second thermometer decoder. The first thermometer decoder is configured to decode most-significant bits (MSBs) of the digital signal to generate a first thermometer code. The second thermometer decoder is configured to decode middle bits of the digital signal to generate a second thermometer code. The DAC further includes a plurality of macro cells with each controlled by one bit of the first thermometer code. The plurality of macro cells is configured to provide a first analog signal according to the first thermometer code. The DAC further includes a macro cell configured to provide a second analog signal according to the second thermometer code. The macro cell is further configured to provide a third analog signal according to least-significant bits (LSBs) of the digital signal.
|
申请公布号 |
US8013770(B2) |
申请公布日期 |
2011.09.06 |
申请号 |
US20080331049 |
申请日期 |
2008.12.09 |
申请人 |
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. |
发明人 |
YANG ROBIT;HSU YING-CHI;XIAO YOU-CHENG;CHOU WEN-SHEN |
分类号 |
H03M1/66 |
主分类号 |
H03M1/66 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|