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AD1582 Fiches technique(PDF) 7 Page - Analog Devices

No de pièce AD1582
Description  2.5 V to 5.0 V Micropower, Precision Series Mode Voltage References
Download  16 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD1582 Fiches technique(HTML) 7 Page - Analog Devices

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AD1582/AD1583/AD1584/AD1585
–7–
REV. D
PARAMETER DEFINITIONS
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:
TCV
VT
VT
VT
T
O
O2
O
1
O2
1
ppm C
C
/]
°
[
=
()()
°
()×−
()
×
25
10
6
where:
VO(25 C) = VO at 25 C
VO(T1) = VO at temperature 1
VO(T2) = VO at temperature 2
Line Regulation (
∆V
O /
∆V
IN)
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 (
∆V
O /
∆I
LOAD)
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
Ω of dc output resistance.
Long-Term Stability (
∆V
O)
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:
VV t
V t
V
Vt
Vt
Vt
OO
0
O
1
O
O0
O1
O0
=
()()
[] = ()
()
()
×
ppm
10
6
where:
VO(t0) = VO at 25 C at time 0
VO(t1) = VO at 25 C after 1000 hours 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:
VV
V
V
VV
V
O_HYS
O
O_TC
O_HYS
OO_TC
O
()
[] =
°
()
°
()
×
25
25
25
10
6
C
ppm
C
C
where:
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
Operating Temperature
The temperature extremes at which the device can still function.
Parts may deviate from their specified performance outside the
specified temperature range.


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