|AD1582ARTZ-REEL7||2.5 V to 5.0 V Micropower, Precision Series Mode Voltage References|
|AD1582ARTZ-REEL7 Datasheet PDF : 16 Pages |
Temperature Coefficient (TCVO)
The change of output voltage over the operating temperature
change and normalized by the output voltage at 25°C, expressed
in ppm/°C. The equation follows
VO (T2 ) −VO (T1 )
VO (25°C)× (T2 −T1
× 10 6
VO (25°C) = VO @ 25°C.
VO (T1) = VO @ Temperature 1.
VO (T2) = VO @ Temperature 2.
Line Regulation (ΔVO/ΔVIN) Definition
The change in output voltage due to a specified change in input
voltage. It includes the effects of self-heating. Line regulation is
expressed in either percent per volt, parts per million per volt,
or microvolts per volt change in input voltage.
Load Regulation (ΔVO/ΔILOAD)
The change in output voltage due to a specified change in load
current. It includes the effects of self-heating. Load regulation
is expressed in either microvolts per milliampere, parts per
million per milliampere, or ohms of dc output resistance.
Long-Term Stability (ΔVO)
Typical shift of output voltage at 25°C on a sample of parts
subjected to an operation life test of 1000 hours at 125°C.
∆VO = VO (t 0 )−VO (t1 )
VO (t0 )
VO (t0) = VO @25°C at Time 0.
VO (t1) = VO @ 25°C after 1000 hours of operation at 125°C.
Thermal Hysteresis (VO_HYS)
The change of output voltage after the device is cycled through
temperatures from +25°C to −40°C to +85°C and back to +25°C.
This is a typical value from a sample of parts put through
such a cycle
VO _ HYS = VO (25°C) −VO _TC
VO _ HYS [ppm] =
(25°C) −VO _TC
× 10 6
VO (25°C) = VO at 25°C.
VO_TC = VO at 25°C after temperature cycle at +25°C to −40°C to
+85°C and back to +25°C.
The temperature extremes at which the device can still function.
Parts can deviate from their specified performance outside the
specified temperature range.
Rev. J | Page 8 of 16
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