NSC LM4041DIM3X-1.2, LM4041DIM3-ADJ, LM4041DIM3-1.2, LM4041DEM3X-ADJ, LM4041DEM3X-1.2 Datasheet
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LM4041
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4041 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SOT-23 surface-mountpackage.The LM4041’s advanced design eliminates the need for an external stabilizing
capacitor while ensuring stability with any capacitive load,
thus making the LM4041 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjustable reverse breakdown voltage. The minimum operating
current is 60 µA for the LM4041-1.2 and the LM4041-ADJ.
Both versions have a maximum operating current of 12 mA.
The LM4041 utilizes fuse and zener-zap reverse breakdown
or reference voltage trim during wafer sort to ensure that the
prime parts have an accuracy of better than
±
0.1
%
(A grade) at 25˚C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable
reverse breakdown voltage accuracy over a wide range of
operating temperatures and currents.
Features
n Small packages: SOT-23, and TO-92
n No output capacitor required
n Tolerates capacitive loads
n Reverse breakdown voltage options of 1.225V and
adjustable
Key Specifications (LM4041-1.2)
n Output voltage tolerance
(A grade, 25˚C)
±
0.1%(max)
n Low output noise
(10 Hz to 10kHz) 20µV
rms
n Wide operating current range 60µA to 12mA
n Industrial temperature range −40˚C to +85˚C
n Extended temperature range −40˚C to +125˚C
n Low temperature coefficient 100 ppm/˚C (max)
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Automotive
n Precision Audio Components
Connection Diagrams
SOT-23
DS011392-1
*This pin must be left floating or connected to pin 2.
DS011392-40
Top View
See NS Package Number M03B
(JEDEC Registration TO-236AB)
TO-92
DS011392-3
DS011392-32
Bottom View
See NS Package Number Z03A
October 1999
LM4041 Precision Micropower Shunt Voltage Reference
© 1999 National Semiconductor Corporation DS011392 www.national.com
Ordering Information
Reverse Breakdown
Voltage Tolerance at 25˚C
and Average Reverse Breakdown
Voltage Temperature Coefficient
Package
M3 (SOT-23) Z (TO-92)
±
0.1%, 100 ppm/˚C max (A grade) LM4041AIM3-1.2 LM4041AIZ-1.2
See NS Package See NS Package
Number M03B Number Z03A
±
0.2%, 100 ppm/˚C max (B grade) LM4041BIZ-1.2
LM4041BIM3-1.2
See NS Package See NS Package
Number M03B Number Z03A
±
0.5%, 100 ppm/˚C max (C grade) LM4041CEM3-1.2 LM4041CIZ-1.2,
LM4041CIM3-1.2 LM4041CEM3-ADJ LM4041CIZ-ADJ
LM4041CIM3-ADJ
See NS Package See NS Package
Number M03B Number Z03A
±
1.0%, 150 ppm/˚C max (D grade) LM4041DEM3-1.2 LM4041DIZ-1.2,
LM4041DIM3-1.2 LM4041DEM3-ADJ LM4041DIZ-ADJ
LM4041DIM3-ADJ
See NS Package See NS Package
Number M03B Number Z03A
±
2.0%, 150 ppm/˚C max (E grade) LM4041EEM3-1.2 LM4041EIZ-1.2
LM4041EIM3-1.2
See NS Package See NS Package
Number M03B Number Z03A
SOT-23 Package Marking Information
Only three fields of marking are possible on the SOT-23’s small surface. This table gives the meaning of the three fields.
Part Marking Field Definition
R1A First Field:
R1B R = Reference
R1C Second Field:
R1D 1 = 1.225V Voltage Option
R1E A = Adjustable
Third Field:
RAC A–E = Initial Reverse Breakdown
RAD Voltage or Reference Voltage Tolerance
A=
±
0.1%,B=±0.2%,C=±0.5%,D=±1.0%,E=±2.0
%
LM4041
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Reverse Current 20 mA
Forward Current 10 mA
Maximum Output Voltage
(LM4041-ADJ) 15V
Power Dissipation (T
A
= 25˚C) (Note 2)
M3 Package 306 mW
Z Package 550 mW
Storage Temperature −65˚C to +150˚C
Lead Temperature
M3 Packages
Vapor phase (60 seconds) +215˚C
Infrared (15 seconds) +220˚C
Z Package
Soldering (10 seconds) +260˚C
ESD Susceptibility
Human Body Model (Note 3) 2 kV
Machine Model (Note 3) 200V
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Operating Ratings(Notes 1, 2)
Temperature Range (T
min
≤ TA≤ T
max
)
Industrial Temperature Range −40˚C ≤ T
A
≤ +85˚C
Extended Temperature Range −40˚C ≤ T
A
≤ +125˚C
Reverse Current
LM4041-1.2 60 µA to 12 mA
LM4041-ADJ 60 µA to 12 mA
Output Voltage Range
LM4041-ADJ 1.24V to 10V
LM4041-1.2
Electrical Characteristics (Industrial Temperature Range)
Boldface limits apply for TA=TJ=T
MIN
to T
MAX
; all other limits TA=TJ= 25˚C. The grades A and B designate initial Re-
verse Breakdown Voltage tolerances of±0.1%and±0.2%, respectively.
Typical LM4041AIM3 LM4041BIM3 Units
Symbol Parameter Conditions (Note 4) LM4041AIZ LM4041BIZ (Limit)
Limits Limits
(Note 5) (Note 5)
V
R
Reverse Breakdown Voltage IR= 100 µA 1.225 V
Reverse Breakdown Voltage I
R
= 100 µA
±
1.2
±
2.4 mV (max)
Tolerance (Note 6)
±
9.2
±
10.4 mV (max)
I
RMIN
Minimum Operating Current 45 µA
60 60 µA (max)
65 65 µA (max)
∆V
R
/∆T Average Reverse Breakdown
Voltage Temperature
Coefficient (Note 6)
I
R
=10mA
±
20 ppm/˚C
I
R
=1mA
±
15
±
100
±
100 ppm/˚C (max)
I
R
= 100 µA
±
15 ppm/˚C
∆V
R
/∆IRReverse Breakdown Voltage
Change with Operating
Current Change
I
RMIN
≤ IR≤ 1 mA 0.7 mV
1.5 1.5 mV (max)
2.0 2.0 mV (max)
1mA≤I
R
≤12 mA 4.0 mV
6.0 6.0 mV (max)
8.0 8.0 mV (max)
Z
R
Reverse Dynamic Impedance IR= 1 mA, f = 120 Hz, 0.5 Ω
I
AC
= 0.1 I
R
1.5 1.5 Ω (max)
e
N
Wideband Noise IR= 100 µA 20 µV
rms
10 Hz ≤ f ≤ 10 kHz
∆V
R
Reverse Breakdown Voltage
Long Term Stability
t = 1000 hrs
T = 25˚C
±
0.1˚C 120 ppm
I
R
= 100 µA
LM4041
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LM4041-1.2
Electrical Characteristics (Industrial Temperature Range)
Boldface limits apply for TA=TJ=T
MIN
to T
MAX
; all other limits TA=TJ= 25˚C. The grades C, D and E designate initial Re-
verse Breakdown Voltage tolerances of±0.5%,±1.0%and±2.0%, respectively.
LM4041EIM3
Typical LM4041CIM3 LM4041DIM3 LM4041EIZ Units
Symbol Parameter Conditions (Note 4) LM4041CIZ LM4041DIZ (Limit)
Limits Limits Limits
(Note 5) (Note 5) (Note 5)
V
R
Reverse Breakdown
Voltage
IR= 100 µA 1.225 V
Reverse Breakdown
Voltage
I
R
= 100 µA
±
6
±
12
±
25 mV (max)
Tolerance (Note 6)
±
14
±
24
±
36 mV (max)
I
RMIN
Minimum Operating
Current
45 µA
60 65 65 µA (max)
65 70 70 µA (max)
∆V
R
/∆TVRTemperature
Coefficient (Note 6)
IR=10mA
±
20 ppm/˚C
I
R
=1mA
±
15
±
100
±
150
±
150 ppm/˚C (max)
I
R
= 100 µA
±
15 ppm/˚C
∆V
R
/∆IRReverse Breakdown
Voltage Change with
Operating Current
Change
I
RMIN
≤ IR≤ 1 mA 0.7 mV
1.5 2.0 2.0 mV (max)
2.0 2.5 2.5 mV (max)
1mA≤I
R
≤12 mA 2.5 mV
6.0 8.0 8.0 mV (max)
8.0 10.0 10.0 mV (max)
Z
R
Reverse Dynamic
Impedance
IR= 1 mA,
f = 120 Hz
0.5 Ω
I
AC
= 0.1 I
R
1.5 2.0 2.0 Ω(max)
e
N
Wideband Noise IR= 100 µA 20 µV
rms
10 Hz ≤ f ≤ 10 kHz
∆V
R
Reverse Breakdown
Voltage Long Term
Stability
t = 1000 hrs
T = 25˚C
±
0.1˚C 120 ppm
I
R
= 100 µA
LM4041
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LM4041-1.2
Electrical Characteristics (Extended Temperature Range)
Boldface limits apply for TA=TJ=T
MIN
to T
MAX
; all other limits TA=TJ= 25˚C. The grades C, D and E designate initial Re-
verse Breakdown Voltage tolerance of
±
0.5%,±1.0
and±2.0
respectively.
LM4041CEM3 LM4041DEM3 LM4041EEM3
Typical Units
Symbol Parameter Conditions (Note 4) (Limit)
Limits Limits Limits
(Note 5) (Note 5) (Note 5)
V
R
Reverse Breakdown
Voltage
IR= 100 µA 1.225 V
Reverse Breakdown
Voltage Error
I
R
= 100 µA
±
6
±
12
±
25 mV (max)
(Note 6)
±
18.4
±
31
±
43 mV (max)
I
RMIN
Minimum Operating
Current
45 µA
60 65 65 µA (max)
68 73 73 µA (max)
∆V
R
/∆T VR Temperature
Coefficient(Note 6)
IR=10mA
±
20 ppm/˚C
I
R
=1mA
±
15
±
100
±
150
±
150 ppm/˚C
(max)
I
R
= 100 µA
±
15 ppm/˚C
∆V
R
/∆IRReverse Breakdown
Change with
Current
I
RMIN
≤ IR≤ 1.0 mA 0.7 mV
1.5 2.0 2.0 mV (max)
2.0 2.5 2.5 mV (max)
1mA≤I
R
≤12 mA 2.5 mV
6.0 8.0 8.0 mV (max)
8.0 10.0 10.0 mV (max)
Z
R
Reverse Dynamic
Impedance
IR=1mA,f=120
Hz,
0.5 Ω
I
AC
= 0.1 I
R
1.5 2.0 2.0 Ω (max)
e
N
Noise Voltage IR= 100 µA 20 µV
rms
10 Hz ≤ f ≤ 10 kHz
∆V
R
Long Term Stability
(Non-Cumulative)
t = 1000 hrs
T = 25˚C
±
0.1˚C 120 ppm
I
R
= 100 µA
LM4041
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LM4041-ADJ (Adjustable)
Electrical Characteristics (Industrial Temperature Range)
Boldface limits apply for TA=TJ=T
MIN
to T
MAX
; all other limits TJ= 25˚C unless otherwise specified (SOT-23, see (Note 7) ,
I
RMIN
≤ IR≤ 12 mA, V
REF
≤ V
OUT
≤ 10V. The grades C and D designate initial Reference Voltage Tolerances of±0.5%and
±
1%, respectively for V
OUT
= 5V.
Symbol Parameter Conditions
Typical
(Note
4)
Units
(Limit)
LM4041CIM3 LM4041DIM3
LM4041CIZ LM4041DIZ
(Note 5) (Note 5)
V
REF
Reference Voltage IR= 100 µA, V
OUT
= 5V 1.233 V
Reference Voltage I
R
= 100 µA, V
OUT
=5V
±
6.2
±
12 mV (max)
Tolerance (Note 8)
±
14
±
24 mV (max)
I
RMIN
Minimum Operating
Current
45 µA
60 65 µA (max)
65 70 µA (max)
∆V
REF
/∆IRReference Voltage
Change with Operating
Current Change
I
RMIN
≤ IR≤ 1 mA 0.7 mV
SOT-23: V
OUT
≥ 1.6V 1.5 2.0 mV (max)
(Note 7) 2.0 2.5 mV (max)
1mA≤I
R
≤12 mA 2 mV
SOT-23: V
OUT
≥ 1.6V(Note
7)
4 6 mV (max)
68mV (max)
∆V
REF
/∆VOReference Voltage
Change
with Output Voltage
Change
I
R
= 1 mA −1.55 mV/V
−2.0 −2.5 mV/V (max)
−2.5 −3.0 mV/V (max)
I
FB
Feedback Current 60 nA
100 150 nA (max)
120 200 nA (max)
∆V
REF
/∆T Average Reference
Voltage Temperature
Coefficient (Note 8)
V
OUT
= 5V, IR= 10 mA 20 ppm/˚C
I
R
= 1 mA 15
±
100
±
150 ppm/˚C (max)
I
R
= 100 µA 15 ppm/˚C
Z
OUT
Dynamic Output
Impedance
IR= 1 mA, f = 120 Hz,
I
AC
= 0.1 I
R
V
OUT=VREF
0.3 Ω
V
OUT
= 10V 2 Ω
e
N
Wideband Noise IR= 100 µA V
OUT=VREF
20 µV
rms
10 Hz ≤ f ≤ 10 kHz
∆V
REF
Reference Voltage Long t = 1000 hrs, IR= 100 µA 120 ppm
Term Stability T = 25˚C
±
0.1˚C
LM4041
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