adr363 Analog Devices, Inc., adr363 Datasheet - Page 15

• Manufacturer Part Number: adr363
• Description: Low Power, Low Noise Voltage References With Sink/source Capability
• Manufacturer: Analog Devices, Inc.

TERMINOLOGY
Temperature Coefficient
The change of output voltage with respect to operating temper-
ature changes normalized by the output voltage at 25°C. This
parameter is expressed in ppm/°C and can be determined by
where:
V
V
V
Line Regulation
The change in output voltage due to a specified change in input
voltage. This parameter accounts for 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
The change in output voltage due to a specified change in load
current. This parameter accounts for 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.
OUT
OUT
OUT
TCV
(25°C) = V
(T
(T
1
2
) = V
) = V
OUT
[
OUT
OUT
ppm/
OUT
at Temperature 1.
at Temperature 2.
°
at 25°C.
C]
=
V
V
OUT
OUT
(
25
( )
T
2
°
C
−
)
V
×
OUT
(
T
2
( )
−
T
1
T
1
)
×
10
6
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. C | Page 15 of 20
Long-Term Stability
The typical shift of output voltage at 25°C on a sample of parts
subjected to a test of 1000 hours at 25°C.
where:
V
V
Thermal Hysteresis
The change of output voltage after the device is cycled from
+25°C to −40°C to +125°C and back to +25°C. This is a typical
value from a sample of parts put through such a cycle.
where:
V
V
−40°C to +125°C and back to +25°C.
OUT
OUT
OUT
OUT_TC
(t
(t
V
V
(25°C) = V
Δ
Δ
OUT
OUT
V
V
0
1
) = V
) = V
= V
OUT
OUT
_
_
HYS
HYS
OUT
[
=
OUT
OUT
ppm
V
[
at 25°C after temperature cycle at +25°C to
=
ppm
OUT
OUT
at 25°C at Time 0.
at 25°C after 1000 hours operation at 25°C.
V
]
OUT
=
at 25°C.
( )
]
t
⎛
⎜
⎜
⎝
=
0
V
(
25
V
OUT
−
OUT
V
°
C
OUT
( )
V
t
)
V
(
0
OUT
−
25
OUT
( )
V
t
–V
°
1
( )
OUT
C
t
(
0
OUT
)
25
−
_
°
TC
V
C
( )
t
OUT
1
)
×
_
10
TC
6
×
⎞
⎟
⎟
⎠
10
6