Datasheet
LM185-ADJ, LM285-ADJ, LM385-ADJ
SNVS741F –FEBRUARY 2000–REVISED APRIL 2013
www.ti.com
Electrical Characteristics
(1)
LM185, LM285 LM385
LM185BX, LM285 LM385
LM185BY
LM385BX,
LM185B,
LM385BY Units
Parameter Conditions LM285BX,
(Limit)
Typ Typ
LM285BY
Tested Design Tested Design Tested Design Tested Design
Limit Limit Limit Limit Limit Limit Limit Limit
(2) (3) (2) (3) (2) (3) (2) (3)
Reference I
R
= 100μA 1.240 1.252 1.265 1.270 1.240 1.252 1.255 1.265 1.270 V (max)
Voltage
1.255
1.228 1.215 1.205 1.228 1.215 1.215 1.205 V (min)
1.215
Reference I
MIN
< I
R
< 1mA 0.2 1 1.5 1 1.5 0.2 1 1.5 1 1.5 mV
Voltage (max)
1mA < I
R
< 20mA 4 10 20 10 20 5 15 25 15 25
Change with
Current
Dynamic I
R
= 100μA, f =
Output 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
Voltage
mV
Change with 1 3 6 3 6 2 5 10 5 10
(max)
Output
Voltage
Feedback 13 20 25 20 25 16 30 35 30 35 nA (max)
Current
Minimum V
OUT
= V
REF
6 9 10 9 10 7 11 13 11 13 μA
Operating (max)
V
OUT
= 5.3V 30 45 50 45 50 35 55 60 55 60
Current (see
curve)
Output I
R
= 100μA, 10Hz < f μV
rms
Wideband < 10kHz
Noise
V
OUT
= V
REF
50 50
V
OUT
= 5.3V 170 170
Average I
R
= 100μA X Suffix 30 30
Temperature
Y Suffix 50 50 ppm/°c
Coefficient
(max)
All 150 150 150 150
(4)
Others
Long Term I
R
= 100μA, T = 1000 20 20 ppm
Stability Hr,
T
A
= 25°C ± 0.1°C
(1) Parameters identified with boldface type apply at temperature extremes. All other numbers apply at T
A
= T
J
= 25°C. Unless otherwise
specified, all parameters apply for V
REF
< V
OUT
< 5.3V.
(2) Production tested.
(3) Not production tested. These limits are not to be used to calculate average outgoing quality levels.
(4) The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures from T
MIN
to T
MAX
, divided by T
MAX
− T
MIN
. The measured temperatures are −55, −40, 0, 25, 70, 85, 125°C.
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