(ADC:失调误差和增益误差的说明)ADC - Offset Error and Gain Error Explained是【讲座】ADC和DAC(模数和数模转换器)(ADC and DAC (Analog to Digital And Digital to Analog )的第9集视频,该合集共计10集,视频收藏或关注UP主,及时了解更多相关视频内容。
Offset error is the difference between the center of the least significant code and the center of the same code on an ideal ADC with the same number of bits. Offset error is usually reported in units of the least significant bit (LSB) of the converter. One LSB is equivalent to the conve...
6、信号与噪声 + 失真比(SINAD):直流到奈奎斯特频段内,正弦波fIN(对于ADC指的是输入正弦波,对于ADC/DAC指的是重建的输出正弦波)的RMS值与转换器噪声的RMS值之比,包括谐波成分。典型值以分贝表示,另请参考关于均方根(RMS)和总谐波失真的注释。 7、dBFS(dB Full Scale) :是数字信号电平单位,简称满度相对电平。F...
一种校准模数转换器的增益误差和输入失调的方法,增加参考电压VDAC来校准增益误差,使用增益误差校准后的参考电压VREF+VDAC来测量得到输入失调Doffset,并以此校准输入失调. A method of calibrating the ADC gain error and input offset method to increase the reference voltage VDAC to calibrate the gain error, ...
2、偏移与增益误差(Offset Gain Error) 器件理想输出与实际输出之差定义为偏移误差,所有数字代码都存在这种误差。在实际中,偏移误差会使传递函数或模拟输入电压与对应数值输出代码间存在一个固定的偏移。通常计算偏移误差方法是测量第一个数字代码转换或“零”转换的电压,并将它与理论零点电压相比较。增益误差是预估传递...
关系到对直流量测量的精确度的问题，所以很关心offset error和gain error对结果的影响以及这两个参数的...
adcgainerror增益误差guide ADC Guide, Part 4: Gain error and gain error drift By Sachin Gupta and Akshay Phatak, Cypress Semiconductor Previously, this series discussed offset error, offset drift, and ways to deal with both. This time, we’ll focus on gain error in the ADC and calibration ...
), GPIOCFG_ANALOG);ADC_CFG = 0;ADC_OFFSET= 0;ADC_GAIN= 0x8000;ADC_DMACFG =ADC_DMARST;ADC lifei6391562018-08-29 09:37:32 tm4c123处理器自带adc误差的问题 tm4c123处理器的手册上给出的12位adc的误差offseterror是±5l***,gainerror是±10l***,最大综合误差±30l***,这个误差是不是太大...
The general calibration flowchart is given in Fig. 3. Offset error will be corrected firstly in the calibration mode. In offset calibration phase, 0 ∼ 2VLSB will be swept as input signal of the SAR ADC, where VLSB is the voltage corresponding to 1LSB, and VT1 in Fig. 3 is the vo...
Abhijan Chakravarty