AD1582B AD [Analog Devices], AD1582B Datasheet - Page 7

• Manufacturer Part Number: AD1582B
• Description: 2.5 V to 5.0 V Micropower, Precision Series Mode Voltage References
• Manufacturer: AD [Analog Devices]

PARAMETER DEFINITIONS
Temperature Coefficient (TCV
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:
where:
Line Regulation (∆V
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
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
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:
where:
REV. D
V
V
V
V
V
O
O
O
O
O
(25 C) = V
(T
(T
(t
(t
0
1
1
2
) = V
) = V
) = V
) = V
TCV
O
O
O
O
O
at 25 C at time 0
at 25 C after 1000 hours operation at 125 C
[
at temperature 1
at temperature 2
∆
∆
ppm C
O
V
V
at 25 C
O
O
[
=
ppm
/
°
O
O
V t
/∆I
/∆V
O
]
( )
]
O
LOAD
=
0
=
IN
)
V t
V
)
−
O
O
)
V t
( )
V T
(
O
25
O
V t
0
( )
O
( )
O
°
1
−
( )
)
2
C
V t
0
)
O
−
×
( )
V T
(
1
O
T
( )
2
×
−
1
10
T
1
6
)
×
10
6
–7–
Thermal Hysteresis (V
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:
where:
Operating Temperature
The temperature extremes at which the device can still function.
Parts may deviate from their specified performance outside the
specified temperature range.
V
V
–40 C to +85 C and back to +25 C
O
O_TC
(25 C) = V
AD1582/AD1583/AD1584/AD1585
= V
O
V
V
O_HYS
O_HYS
at 25 C after temperature cycle at +25 C to
O
at 25 C
[
=
ppm
V
O
(
]
O_HYS
25
=
°
V
C
O
)
)
(
25
−
V
O
V
°
(
O_TC
C
25
)
°
−
C
V
)
O_TC
×
10
6