SBASA22A september 2022 – july 2023 ADS131B26-Q1
PRODUCTION DATA
The ADS131B26-Q1 integrates two independent temperature sensors, TSA and TSB, one in each section of the device. Use the temperature sensors to measure the die temperature of each section. The temperature sensors output a linear voltage that is proportional to temperature. The output voltage characteristics (TSOffset, TSTC) of the temperature sensors are specified in the Electrical Characteristics table.
Use ADC2A to measure the output signal of TSA. To select TSA for measurement, configure any of the ADC2A sequence steps (SEQ2A_STEPx_CH_P[3:0]) for TSA measurement. For best measurement performance, configure the respective sequence step for gain = 2 using the SEQ2A_STEPx_GAIN[1:0] bits. Correspondingly, use ADC2B to measure the output signal of TSB.
Equation 18 shows how to convert the measured temperature sensor output voltage to die temperature: