Micropowe
r
V
oltag
e
Referenc
e
Diode
General
Description
Th
e
LM385-2.
5
ar
e
micropower
2-terminal
band-gap
voltage
regulator
diodes.
Operating
over
a
20
µA
to
20
mA
current
range,
they
feature
exception-
ally
low
dynamic
impedance
and
good
temperature
stability
.
On-chip
trimming
is
used
to
provide
tight
voltage
tolerance.
Features
n
±
2
0
m
V
(
±
0.8
%
)
max
.
initia
l
toleranc
e
(
A
grade)
n
Operatin
g
curren
t
o
f
2
0
µ
A
t
o
2
0
mA
n
0.6
Ω
dynami
c
impedanc
e
(
A
grade)
n
Lo
w
temperatur
e
coe
f
ficient
n
Lo
w
voltag
e
referenc
e
—
2.5V
Connection
Diagrams
TO-92
Plastic
Package
LM385-2.5
Ordering No: LM385Z-2.5
LM385Z-2.5
Bottom View
1
2
3
1: "_"
2: "+"
3: NC
1
Absolut
e
Maximu
m
Rating
s
Reverse
Current
30
mA
Forward
Current
10
mA
Operating
T
emperature
Range
(Note
3)
LM385-2.5
0˚C
to
70˚C
Storage
T
emperature
−55˚C
to
+
150˚C
Soldering
Information
TO-92
Package
(10
sec.)
260˚C
Electrical
Characteristics
(Note
4)
Parameter
Conditions
Typ
Units
(Limits)
LM385-2.5
Tested
Design
Limit
Limit
Revers
e
Breakdow
n
Voltag
e
2.50
0
Minimu
m
Operatin
g
Current
(Max)
Revers
e
Breakdow
n
≤
I
R
≤
1m
A
Voltag
e
Chang
e
wit
h
(Max)
Current
1
mA
≤
I
R
≤
2
0
m
A
(Max)
Reverse
Dynamic
I
R
Ω
Impedanc
e
f
=
2
0
H
z
Wideband
Noise
(rms)
I
R
=
100
µA
120
µV
10
Hz
≤
f
≤
10
kHz
Long
Term
Stability
I
R
=
100
µA,
T
=
1000
Hr,
20
ppm
T
A
=
25˚C
±
0.1˚C
Average
Temperature
I
MIN
≤
I
R
≤
20
mA
ppm/˚C
(Max)
150
LM385-2.5
T
A
=25 C
o
R
20uA < I < 20mA
2.425
2.575
V(Min)
V(Max)
13
20
30
uA
20uA
2.0
2.5
mV
20
25
mV
=
100uA
1
2
T
ypical
Performance
Characteristics
Applications
LM385-2.5
Applications
Reverse
Characteristics
DS005519-15
Reverse
Characteristics
DS005519-16
Forward
Characteristics
DS005519-17
T
emperature
Drift
DS005519-18
Reverse
Dynamic
Impedance
DS005519-19
Reverse
Dynamic
Impedance
DS005519-20
Noise
V
oltage
DS005519-21
Filtered
Output
Noise
DS005519-22
Response
Time
DS005519-23
Wide
Input
Range
Reference
DS005519-12
Micropower
Reference
from
9V
Battery
LM385-2.5
3
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