Differential non-linearity (DNL) is defined as the maximum and minimum difference in the step width between actual transfer function and the perfect transfer function. Non-linearity produces quantization steps with varying widths, some narrower and some wider. For the case of ideal ADC, the step ...
3. Sigma-delta ADC Sigma-delta ADC 采用 1 位 DAC、滤波和附加采样来实现非常精确的转换,转换精度取决于 参考输入和输入时钟频率。 Sigma -delta 转换器的主要优势在于其较高的分辨率。 文案大全 实用标准文档 闪速和逐次逼近 ADC采用并联电阻或串联电阻,这些方法的问题在于电阻的精确度将直接 影响转换结果的精确...
59、and THD as given below.1.15 ENOBEffective number of bits (ENOB) is the number of bits with which the ADC behaves like a perfect ADC.It is another way of representing the signal to noise ratio and distortion (SINAD) and is derived from the formula specified in Section 2.11 as given ...
Apply the formula above to this ratio in decibels (dB) to determine ENOB. Interpretation and Relevance: ENOB is essential for assessing an ADC's quality. When ENOB is high, the ADC is operating more closely to its nominal resolution. ENOB is an important specification for applications where ...
DIFFERENTIAL NON-LINEARITY (DNL) is the measure of the maximum deviation from the ideal step size of 1 LSB. Measured at 200 Msps with a ramp input. EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE BITS) is another method of specifying Signal-to-Noise and Distortion Ratio, or SINAD. ENOB is...
DIFFERENTIAL NON-LINEARITY (DNL) is the measure of the maximum deviation from the ideal step size of 1 LSB. EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE BITS) is another method of specifying Signal-to-Noise and Distortion or SINAD. ENOB is defined as (SINAD - 1.76) / 6.02 and says ...
4095 LSB voltage level (worst case) Qcharging = Qdischarging 46/53 Csh ⋅ Umax = U--R---l-is--n-b- ⋅ ∫tC e-R---i-n---Ct---e--x---tdt 0 Simplification of the above formula gives the final formula for the required waiting time between conversions: tC = –(Ri...
droop shown in (3). And the effective MSB bit weight is not dependent on Vin, unlike wn-1’ in (4). To generalize from the derivation above, let’s now assume each bit capacitor has its corresponding reservoir capacitor in the SAR DAC, we will arrive at the following general formul...
The maximum allowable power dissipation is dictated by TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula PDMAX = (TJmax − TA)/θJA. In the 28-pin TSSOP, θJA is 96°C/W, so PDMAX = 1,302 mW at...
DIFFERENTIAL NON-LINEARITY (DNL) is the measure of the maximum deviation from the ideal step size of 1 LSB. EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE BITS) is another method of specifying Signal-to-Noise and Distortion or SINAD. ENOB is defined as (SINAD - 1.76) / 6.02 and says ...