SBAS901C July 2018 – October 2020 REF34-Q1
Thermal hysteresis is measured with the REF34-Q1 soldered to a PCB, similar to a real-world application. Thermal hysteresis for the device is defined as the change in output voltage after operating the device at 25°C, cycling the device through the specified temperature range, and returning to 25°C. Hysteresis can be expressed by Equation 1:
Typical thermal hysteresis distribution is as shown in Figure 9-6.