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PDF LM4041 Data sheet ( Hoja de datos )
| Número de pieza | LM4041 | |
| Descripción | Precision Micropower Shunt Voltage Reference | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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October 1999
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-mount package. The LM4041’s ad-
vanced 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 de-
sign effort is the availability of a fixed (1.225V) and adjust-
able 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 cur-
vature 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)
n Low output noise
(10 Hz to 10kHz)
n Wide operating current range
n Industrial temperature range
n Extended temperature range
n Low temperature coefficient
±0.1%(max)
20µVrms
60µA to 12mA
−40˚C to +85˚C
−40˚C to +125˚C
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.
Top View
See NS Package Number M03B
(JEDEC Registration TO-236AB)
TO-92
DS011392-40
DS011392-3
Bottom View
See NS Package Number Z03A
© 1999 National Semiconductor Corporation DS011392
DS011392-32
www.national.com
1 page  
LM4041-1.2
Electrical Characteristics (Extended Temperature Range)
Boldface limits apply for
verse Breakdown Voltage
tTolAer=anTcJe=ofTM±I0N.t5o%T,M±A1X.;0all
other
limits
TA
=
TJ
=
25˚C.
The
grades
C,
D
and
E
designate
initial
Re-
and ±2.0
respectively.
LM4041CEM3 LM4041DEM3 LM4041EEM3
Typical
Units
Symbol
Parameter
Conditions
(Note 4)
(Limit)
Limits
Limits
Limits
(Note 5)
(Note 5)
(Note 5)
VR Reverse Breakdown IR = 100 µA
Voltage
1.225
V
Reverse Breakdown
Voltage Error
IR = 100 µA
±6 ±12 ±25 mV (max)
(Note 6)
±18.4
±31
±43 mV (max)
IRMIN
Minimum Operating
Current
45 µA
60 65 65 µA (max)
68 73 73 µA (max)
∆VR/∆T VR Temperature
Coefficient(Note 6)
IR= 10 mA
IR = 1 mA
±20
±15 ±100
±150
±150
ppm/˚C
ppm/˚C
(max)
IR = 100 µA
±15
ppm/˚C
∆VR/∆IR Reverse Breakdown
IRMIN ≤ IR ≤ 1.0 mA
0.7
mV
Change with
1.5 2.0 2.0 mV (max)
Current
2.0 2.5 2.5 mV (max)
1 mA ≤ IR ≤ 12 mA
2.5
mV
6.0 8.0 8.0 mV (max)
8.0
10.0
10.0
mV (max)
ZR Reverse Dynamic
Impedance
IR = 1 mA, f = 120
Hz,
0.5
Ω
eN Noise Voltage
IAC= 0.1 IR
1.5 2.0 2.0 Ω (max)
IR = 100 µA
20
µVrms
10 Hz ≤ f ≤ 10 kHz
∆VR Long Term Stability
(Non-Cumulative)
t = 1000 hrs
T = 25˚C ±0.1˚C
120
ppm
IR = 100 µA
5 www.national.com
5 Page 
Typical Performance Characteristics (Continued)
Large Signal Response
DS011392-17
Functional Block Diagram
DS011392-18
*LM4041-ADJ only
**LM4041-1.2 only
DS011392-21
11 www.national.com
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet LM4041.PDF ] | |
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