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AD1584C View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD1584C 2.5 V to 5.0 V Micropower, Precision Series Mode Voltage References ADI
Analog Devices ADI
AD1584C Datasheet PDF : 16 Pages
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AD1582/AD1583/AD1584/AD1585
PARAMETER DEFINITIONS
Temperature Coefficient (TCVO)
The change of output voltage over the operating temperature
change and normalized by the output voltage at 25ЊC, expressed
in ppm/ЊC. The equation follows:
where:
TCVO[ppm /°C
]
=
VO(T2 ) VO(T1)
VO(25°C) × (T2 T1)
× 106
VO(25ЊC) = VO at 25ЊC
VO(T1) = VO at temperature 1
VO(T2) = VO at temperature 2
Line Regulation (VO/VIN)
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 (VO/ILOAD)
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 of dc output resistance.
Long-Term Stability (VO)
Typical shift of output voltage at 25ЊC on a sample of parts
subjected to an operation life test of 1000 hours at 125ЊC:
where:
VO = (VO t0 ) VO(t1)
VO[ppm]
=
VO(t0 ) VO(t1)
VO(t0 )
×
106
VO(t0) = VO at 25ЊC at time 0
VO(t1) = VO at 25ЊC after 1000 hours operation at 125ЊC
Thermal Hysteresis (VO_HYS)
The change of output voltage after the device is cycled through
temperatures from +25ЊC to –40ЊC to +85°C and back to +25ЊC.
This is a typical value from a sample of parts put through such
a cycle:
where:
( ) VO_HYS = VO 25°C VO_TC
[ ] VO_HYS ppm =
VO(25°C) VO_TC
VO(25°C)
× 106
VO(25ЊC) = VO at 25ЊC
VO_TC = VO at 25ЊC after temperature cycle at +25ЊC to
–40ЊC to +85ЊC and back to +25ЊC
Operating Temperature
The temperature extremes at which the device can still function.
Parts may deviate from their specified performance outside the
specified temperature range.
REV. D
–7–
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