AD7366/AD7367
Power Supply Rejection Ration (PSRR)
It is expressed in ppm using the following equation:
REF (2±°C) −VREF (T _ HYS)
ꢁariations in power supply affect the full-scale transition but
not the converter’s linearity. PSRR is the maximum change in
the full-scale transition point due to a change in power supply
voltage from the nominal value (see Figure 11).
V
V
HYS (ppm) =
× 1ꢀ6
V
REF (2±°C)
where:
V
V
REF(2±°C) is ꢁREF at 2±°C.
REF(T_HYS) is the maximum change of ꢁREF at T_HYS+ or
Thermal Hysteresis
Thermal hysteresis is defined as the absolute maximum change
of reference output voltage after the device is cycled through
temperature from either
T_HYS−.
T_HYS+ = +2±°C to TMAX to +2±°C
or
T_HYS− = +2±°C to TMIN to +2±°C
Rev. 0 | Page 15 of 28
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