SBAS683B August 2014 – May 2020 ADS1120-Q1
PRODUCTION DATA.
Figure 80 and Figure 81 show the measurement results. The measurements are taken at TA = 25°C. A system offset calibration is performed using a reference resistor of 100 Ω. No gain calibration is implemented. The data in Figure 80 are taken using precision resistors instead of a 3-wire Pt100. The respective temperature measurement error in Figure 81 is calculated from the data in Figure 80 using the NIST tables.
The design meets the required temperature measurement accuracy given in Table 19. Note that the measurement error shown in Figure 81 does not include the error of the RTD itself.