V_{i} = -\frac{1}{2}FSR * cos(θ_{i}) = -\frac{1}{2}FSR * cos(\pi\frac{Cumsum(i)}{N}) \\然后就可以得到sin2ramp结果如下: step3.计算DNL和INL DNL(k) = V(k+1) - V(k) - 1 \\DNL = MAX[DNL(k)] \\ INL(k) = \sum_{i=0}^{k}DNL(i) \\INL = MAX[INL(...
Unfortunately the histogram method requires the capture of fairly large data records. The number of samples required is depending on the resolution of the ADC, the desired confidence level of the measurement, and the size of the DNL error. For instance, a 10-bit ADC with a DNL error (β)...
如何测量告诉ADC的INL和DNL
Step 7: 计算 INL_jINL=zeros(j_max-1,1);% 预分配 INL 数组forj=1:(j_max-1)INL(j)=sum(DNL(1:j));% 累加DNL误差以计算INLenddisp('INL 计算完成');% 显示结果disp(['INL 最大值:',num2str(max(INL)),' LSB']);disp(['INL 最小值:',num2str(min(INL)),' LSB']);disp(['DNL ...
1LSB = VFSR/2N N ADC 1LSB DNL ADC DNL VD D V ZERO VLSB-IDEAL N ADC INL INL DNL DNL DAC DUT PC X-Y DAC DNL = [(VD+1 - VD)/VLSB-IDEAL - 1] 0 < D < 2N - 2 VD ADC D VLSB-IDEAL DNL ADC SNR N ADC ADC X-Y VDIFF ADC DAC DAC V DIFF INL DNL...
1、量化误差(Quantization Error) 量化误差是基本误差,用简单3bit ADC来说明。输入电压被数字化,以8个离散电平来划分,分别由代码000b到111b去代表它们,每一代码跨越Vref/8的电压范围。代码大小一般被定义为一个最低有效位(Least Significant Bit,LSB)。若假定Vref=8V时,每个代码之间的电压变换就代表1V。换言之...
Example:inldnl(a,d,[-1 1],'DAC', 'INLMethod', 'All', 'DNLMethod','All')calculates the INL and DNL of a DAC using both endpoint and best fit method. OffsetErrorUnit—Unit of reported offset error LSB(default) |%FS|FS|All
1LSB = VFSR/2N N ADC 1LSB DNL ADC DNL VD D V ZERO VLSB-IDEAL N ADC INL INL DNL DNL DAC DUT PC X-Y DAC DNL = [(VD+1 - VD)/VLSB-IDEAL - 1] 0 < D < 2N - 2 VD ADC D VLSB-IDEAL DNL ADC SNR N ADC ADC X-Y VDIFF ADC DAC DAC V DIFF INL DNL...
1、量化误差(Quantization Error) 量化误差是基本误差,用简单3bit ADC来说明。输入电压被数字化,以8个离散电平来划分,分别由代码000b到111b去代表它们,每一代码跨越Vref/8的电压范围。代码大小一般被定义为一个最低有效位(Least Significant Bit,LSB)。若假定Vref=8V时,每个代码之间的电压变换就代表1V。换言之...
INL and DNL Definitions DNL error is defined as the difference between an actual step width and the ideal value of 1LSB (see Figure 1a). For an ideal ADC, in which the differential nonlinearity coincides with DNL = 0LSB, each analog step equals 1LSB (1LSB = VFSR/2N, where VFSR is ...