发明名称 |
CHARGE INJECTION MECHANISM FOR ANALOG-TO-DIGITAL CONVERTERS |
摘要 |
A low-cost charge injection mechanism may enable oversampling to be used on low frequency signals by injecting dither noise into the ADC input. The dither noise can reduce the quantization noise allowing even direct current (DC) signals to be oversampled correctly. A low-cost charge injection mechanism can also be used to improve the ENOB by characterizing the ADC and digitally correcting the converted signal for non-linearity errors such as INL. Reducing INL errors may also allow a higher degree of oversampling to be used to further improve the ENOB.
|
申请公布号 |
US2012139767(A1) |
申请公布日期 |
2012.06.07 |
申请号 |
US20100959317 |
申请日期 |
2010.12.02 |
申请人 |
LARSEN FREDRIK;PEDERSEN FRODE MILCH;HERHEIM JAN RUNE;BARZIC RONAN;ATMEL CORPORATION |
发明人 |
LARSEN FREDRIK;PEDERSEN FRODE MILCH;HERHEIM JAN RUNE;BARZIC RONAN |
分类号 |
H03M1/00 |
主分类号 |
H03M1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|