4.4 Configuration 4: Burst Conversion with 16x Gain and Software Accumulation

If the conversion time is not a restraint, in addition to the settings specified for Configuration 3, software accumulation and averaging can be implemented to achieve even greater accuracy. By accumulating 128 burst conversion results in software (each conversion represents the sum of 1024 samples), the following measurements were obtained:

Table 4-4. Configuration 4 Results
Weight on load cell:2.003 kg
Maximum weight measured:2.007 kg
Minimum weight measured:2.000 kg
Max - Min:0.007 kg
Figure 4-4. Configuration 4 Chart

Combining the effects of hardware and software accumulation offers impressive results. As a drawback, the additional accuracy comes at the price of considerably long conversion times, as the total number of accumulated samples is equal to the product of the set hardware and software sample numbers. Additionally, the software implemented accumulation is core dependent.