Hi,I trying to do an worst case error estimation in my ADC readings and according to the Datasheet as shown below I’ve other error factors Offset, Full- scale, Absolute Accuracy, DNL, INL.Read more
Hi @jabirsheikh, For limit-checking sludge, the hardware uses the original ADC output and not the output from the difference mode. As I understand from the description you need to do the limit checking for the Difference mode result which won't be possible because of this. Thank You Sachin Sharma
Hi jabirsheikh,
For limit-checking sludge, the hardware uses the original ADC output and not the output from the difference mode. As I understand from the description you need to do the limit checking for the Difference mode result which won’t be possible because of this.
Thank You
Sachin Sharma
Hello Jameshleo, Thanks for reaching out to the Volt Tech Community. First, the max values for errors defined on the user's manual are the worst error values measured in the laboratory test environment for the full voltage range, while typical is the most usual error value without compensation. UsinRead more
Hello Jameshleo,
See lessThanks for reaching out to the Volt Tech Community.
First, the max values for errors defined on the user’s manual are the worst error values measured in the laboratory test environment for the full voltage range, while typical is the most usual error value without compensation.
Using software techniques such as Two- a point calibration system you cancel/ compensate offset and full-scale error.
In the case of the Renesas specification, the Absolute Accuracy value is the total uncompensated error for all error terms( INL, DNL, Offset, Gain, and Quantization error terms).
So, you can improve the Absolute Accuracy to be lower than using compensation methods.
Also, find attached the INL meaning:
The INL depends on the internal circuit architecture and from any possible distortion, caused by the front-end signal conditioning circuit.
I hope it helps!
Regards,
Vikas Nagpal