LM385MX Datasheet, PDF (4/23 Pages) Texas Instruments – LM185/LM285/LM385 Adjustable Micropower Voltage References

LM185-ADJ, LM285-ADJ, LM385-ADJ
SNVS741F – FEBRUARY 2000 – REVISED APRIL 2013
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Electrical Characteristics⁽¹⁾
LM185, LM285
LM385
Parameter
Conditions
LM185BX,
LM185BY
LM185B,
LM285BX,
Typ
LM285BY
LM285
LM385BX,
LM385BY
Typ
LM385
Units
(Limit)
Tested Design Tested Design
Limit Limit Limit Limit
(2)
(3)
(2)
(3)
Tested Design Tested Design
Limit Limit Limit Limit
(2)
(3)
(2)
(3)
Reference
Voltage
I_R = 100μA
1.240 1.252
1.255
1.265 1.270 1.240 1.252 1.255 1.265 1.270 V (max)
1.228
1.215 1.205
1.228 1.215 1.215 1.205 V (min)
1.215
Reference
Voltage
Change with
Current
I_MIN< I_R < 1mA
1mA < I_R < 20mA
0.2
1
1.5
1
4
10
20
10
1.5 0.2
1
20
5
15
1.5
1
25
15
1.5
mV
25
(max)
Dynamic
Output
I_R = 100μA, f =
100Hz
Impedance _{IAC = 0.1 IR VOUT = 0.3}
0.4
V_REF
Ω
V_OUT = 0.7
1
5.3V
Reference
Voltage
Change with
Output
Voltage
I_R = 100μA
1
3
6
3
6
2
5
10
5
10
mV
(max)
Feedback
Current
13
20
25
20
25
16
30
35
30
35 nA (max)
Minimum
Operating
Current (see
curve)
V_OUT = V_REF
V_OUT = 5.3V
6
9
10
9
10
7
11
13
11
13
μA
30
45
50
45
50
35
55
60
55
60
(max)
Output
Wideband
Noise
I_R = 100μA, 10Hz < f
< 10kHz
V_OUT = V_REF
50
V_OUT = 5.3V
170
Average
Temperature
Coefficient
(4)
I_R = 100μA
X Suffix
Y Suffix
All
Others
30
50
150
50
170
30
50
150
150
μV_rms
ppm/°c
150
(max)
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.
4
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