Other Parts Discussed in Thread: ADS1247, ADS122U04,
Hi,
We were evaluating a couple of ADCs for measuring weights using a load cell set up, We have evaluated a couple of ADCS such as the ADS1232 ,ADS1247 and ADS122U04 24 bit ads, We have built custom boards for all this with excitation voltage of around 5v to the load cell and Analog inputs.
One issues we have face is that the data values keep jumping when we are touching the laptop to large extend (more like an offset error) for the ADS1232.
when we connect the charger this becomes offset becomes less but there is more of noise now due to 50/60hz (when we touch the laptop). Do you have any solutions to this problem ? Will it affect us when we move this into mass production?.What should we do to reduce this behavior?
We set the ADC to the lowest sample rate and highest ENOB setting for the all readings and tests .