LM385-ADJ Datasheet, PDF (3/14 Pages) National Semiconductor (TI) – Adjustable Micropower Voltage References

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Reverse Current
Forward Current
Operating Temperature Range (Note 3)
LM185 Series
LM285 Series
LM385 Series
30mA
10mA
−55˚C to 125˚C
−40˚C to 85˚C
0˚C to 70˚C
Storage Temperature
−55˚C to 150˚C
Soldering Information
TO-92 Package (10 sec.)
260˚C
TO-46 Package (10 sec.)
300˚C
SO Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See An-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Electrical Characteristics (Note 4)
LM185, LM285
LM385
LM185BX,
LM185BY
LM385BX,
Parameter
Conditions
LM185B,
LM285BX,
Typ LM285BY
LM285
LM385BY
Typ
LM385
Units
(Limit)
Tested Design Tested Design
Tested Design Tested Design
Limit Limit Limit Limit
Limit Limit Limit Limit
(Note (Note (Note (Note
(Note (Note (Note (Note
5)
6)
5)
6)
5)
6)
5)
6)
Reference
Voltage
I_R = 100µA
1.240 1.252
1.265 1.270 1.240 1.252 1.255 1.265 1.270 V
1.255
(max)
1.228
1.215 1.205
1.228 1.215 1.215 1.205 V
Reference
Voltage
Change with
Current
I_MIN< I_R < 1mA
1mA < I_R < 20mA
1.215
(min)
0.2 1
1.5
1
1.5 0.2 1
1.5
1
1.5 mV
4 10
20
10
20 5 15
25
15
25 (max)
Dynamic Output I_R = 100µA, f = 100Hz
Impedance
I_AC = 0.1 I_R V_OUT =
0.3
0.4
Ω
V_REF
V_OUT =
0.7
1
5.3V
Reference
I_R = 100µA
mV
Voltage
Change with
Output
1
3
6
3
6
2
5
10
5
10
(max)
Voltage
Feedback
13 20
25
20
25 16 30
35
30
35 nA
Current
(max)
Minimum
Operating
V_OUT = V_REF
6
9
10
9
10 7 11
13
11
13 µA
Current (see V_OUT = 5.3V
30 45
50
45
50 35 55
60
55
60 (max)
curve)
Output
I_R = 100µA, 10Hz < f <
Wideband
10kHz
Noise
V_OUT = V_REF
50
50
µV_rms
V_OUT = 5.3V
170
170
3
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