* CKA greater than 100nF is needed for stability.
The deviation parameter ΔVref is defined as the differences
between the maximum and minimum values obtained over the
full operating ambient temperature range that applies.
Example : ΔVref = 5.0mV and slope is positive,
Vref at 25℃=1.245V, ΔTa=110℃
Note 2: The dynamic impedance Zka is defined as:
|Zka| = ΔIk
When the device is programmed with two external
resistors, R1 and R2, (refer to Figure 2) the total
dynamic impedance of the circuit is defined as:
|Zka'| = |Zka| (1+ R2 )
The average temperature coefficient of the Reference
input voltage, ΔVref , is defined as:
) × 106
αVref ( ℃ ) =
Vref at 25℃
= ΔVref × 106
ΔTa(Vref at 25℃)
αVref can be positive or negative depending on whether
Vref Min. or Vref Max. occurs at the lower ambient temperature.
2011. 7. 6
Revision No : 6