LM4140ACMX-4.1 National Semiconductor, LM4140ACMX-4.1 Datasheet - Page 4

• Manufacturer Part Number: LM4140ACMX-4.1
• Description: High Precision Low Noise Low Dropout Voltage
• Manufacturer: National Semiconductor

www.national.com
Operating
Voltage
V
I
I
V
I
V
I
I
S(ON)
S(OFF)
H
L
SC
LM4140
Electrical Charateristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-
anteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by T
temperature),
− T
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
rectly into each pin.
Note 4: For proper operation, a 1µF capacitor is required between the output pin and the GND pin of the device. (See Application Section for details)
Note 5: Typical numbers are at 25˚C and represent the most likely parametric norm.
Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 7: High temperature and mechanical stress associated with PCB assembly can have significant impact on the initial accuracy of the LM4140 and may create
significant shifts in V
Note 8: Thermal hysteresis is defined as the changes in +25˚C output voltage before and after the cycling of the device from 0˚C to 70˚C.
Note 9: Dropout voltage is defined as the minimum input to output differential voltage at which the output voltage drops by 0.5% below the value measured with V
Note 10: The output noise is based on 1.024V option. Output noise is linearly proportional to V
= 3.0V for the LM4140-1.024 and LM4140-1.250, V
Unless otherwise specified, V
boldface type apply over 0˚C to 70˚C temperature range.
= V
N
H
L
V
Symbol
IN
A
)/
IN
-V
J-A
. C
REF
up to the value listed in the Absolute Maximum Ratings. The
OUT
J-A
= 1µF (Note 4), I
(junction to ambient thermal resistance) and T
LM4140-1.024,
LM4140-1.250
Dropout Voltage (Note 9)
LM4140-2.048,
LM4140-2.500
LM4140-4.096
Output Noise Voltage
(Note 10)
Supply Current
All other voltage options
4.096V Option
Supply Current
Logic High Input Voltage
Logic High Input Current
Logic Low Input Voltage
Logic Low Input Current
Short Circuit Current
REF
. See Application Hints section regarding accuracy and PCB layout consideration.
Parameter
IN
LOAD
= 3.0V for the LM4140-1.024 and LM4140-1.250, V
= 1mA, T
IN
(Continued)
= 5.0V for all other voltage options.
A
= T
I
I
I
I
I
0.1 Hz to 10 Hz
I
V
L
L
L
L
L
LOAD
Enable
A
= 1 mA to 8 mA
= 1 mA
= 8 mA
= 1 mA
= 8 mA
J
(ambient temperature). The maximum power dissipation at any temperature is: PDiss
= 25˚C. Limits with standard typeface are for T
= 0 mA
Conditions
<
J-A
0.4V
for the SO-8 package is 160˚C/W.
4
resistor into each pin. The machine model is a 200 pF capacitor discharged di-
REF
(Note 6)
.
0.8V
Min
1.8
8.5
IN
IN
= 5.0V for all other voltage options, V
(Note 5)
Typ
160
195
230
265
2.2
.01
20
20
20
2
1
A
= 25˚C, and limits in
(Note 6)
Max
235
400
270
490
320
375
350
400
5.5
0.4
40
45
40
45
35
40
JMAX
1
(maximum junction
MAX
= (T
Units
µV
mV
mA
µA
µA
nA
nA
V
V
V
JMAX
PP
EN
IN