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PDF LM4040 Data sheet ( Hoja de datos )
| Número de pieza | LM4040 | |
| Descripción | Precision Micropower Shunt Voltage Reference | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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September 1998
LM4040
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4040 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SOT-23 surface-mount package. The LM4040’s ad-
vanced design eliminates the need for an external stabilizing
capacitor while ensuring stability with any capacitive load,
thus making the LM4040 easy to use. Further reducing de-
sign effort is the availability of several fixed reverse break-
down voltages: 2.500V, 4.096V, 5.000V, 8.192V, and
10.000V. The minimum operating current increases from
60 µA for the LM4040-2.5 to 100 µA for the LM4040-10.0. All
versions have a maximum operating current of 15 mA.
The LM4040 utilizes fuse and zener-zap reverse breakdown
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 break-
down voltage accuracy over a wide range of operating tem-
peratures and currents.
Also available is the LM4041 with two reverse breakdown
voltage versions: adjustable and 1.2V. Please see the
LM4041 data sheet.
Features
n Small packages: SOT-23, TO-92
n No output capacitor required
n Tolerates capacitive loads
n Fixed reverse breakdown voltages of 2.500V, 4.096V,
5.000V, 8.192V, and 10.000V
Key Specifications (LM4040-2.5)
n Output voltage tolerance
(A grade, 25˚C)
n Low output noise
(10 Hz to 10 kHz)
n Wide operating current range
n Industrial temperature range
n Extended temperature range
n Low temperature coefficient
±0.1% (max)
35 µVrms(typ)
60 µA to 15 mA
−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 Product Testing
n Automotive
n Precision Audio Components
Connection Diagrams
SOT-23
TO-92
DS011323-1
*This pin must be left floating or connected to pin 2.
Top View
See NS Package Number M03B
(JEDEC Registration TO-236AB)
DS011323-3
Bottom View
See NS Package Number Z03A
© 1998 National Semiconductor Corporation DS011323
www.national.com
1 page  
LM4040-2.5
Electrical Characteristics (Industrial Temperature Range)
Boldface limits apply for TA = TJ = TMIN
Reverse Breakdown Voltage tolerances of
±to0.T5M%A,X±; 1a.l0l %othaenrdlim±2its.0T%A,
= TJ = 25˚C.
respectively.
The
grades
C,
D
and
E
designate
initial
Symbol
Parameter
Conditions
VR
IRMIN
Reverse
Breakdown Voltage
Reverse
Breakdown Voltage
Tolerance (Note 6)
Minimum Operating
Current
IR = 100 µA
IR = 100 µA
∆VR/∆T
Average Reverse
Breakdown Voltage
Temperature
Coefficient(Note 6)
∆VR/∆IR Reverse
Breakdown Voltage
Change with
Operating Current
Change
IR = 10 mA
IR = 1 mA
IR = 100 µA
IRMIN ≤ IR ≤ 1 mA
1 mA ≤ IR ≤ 15 mA
ZR Reverse Dynamic IR = 1 mA, f = 120 Hz
Impedance
IAC = 0.1 IR
eN
Wideband Noise
IR = 100 µA
10 Hz ≤ f ≤ 10 kHz
∆VR Reverse
t = 1000 hrs
Breakdown Voltage T = 25˚C ±0.1˚C
Long Term Stability IR = 100 µA
Typical
(Note 4)
2.500
LM4040CIM3 LM4040DIM3
LM4040CIZ LM4040DIZ
Limits
Limits
(Note 5)
(Note 5)
LM4040EIZ
Limits
(Note 5)
±12
±29
45
60
65
±20
±15 ±100
±25
±49
65
70
±150
±50
±74
65
70
±150
±15
0.4
0.8
1.0
2.5
6.0
8.0
0.3
0.9
35
1.0 1.0
1.2 1.2
8.0
10.0
8.0
10.0
1.1 1.1
120
Units
(Limit)
V
mV (max)
mV (max)
µA
µA (max)
µA (max)
ppm/˚C
ppm/˚C
(max)
ppm/˚C
mV
mV (max)
mV (max)
mV
mV (max)
mV (max)
Ω
Ω(max)
µVrms
ppm
5 www.national.com
5 Page 
LM4040-5.0
Electrical Characteristics (Extended Temperature Range)
Boldface limits apply for
verse Breakdown Voltage
TA = TJ =
tolerances
oTfM±IN0.t5o%TaMnAdX;±a1ll.0o%th,errelsimpeitcstiTvAely=.
TJ
=
25˚C.
The
grades
C
and
D
designate
initial
Re-
Symbol
Parameter
Conditions
Typical LM4040CEM3 LM4040DEM3
Units
Limits
Limits
(Limit)
(Note 4)
(Note 5)
(Note 5)
VR Reverse Breakdown
Voltage
IR = 100 µA
Reverse Breakdown
IR = 100 µA
Voltage Tolerance(Note 6)
5.000
±25
±75
±50
±125
V
mV (max)
mV (max)
IRMIN
Minimum Operating
Current
54
74
µA
79 µA (max)
83 88 µA (max)
∆VR/∆T
Average Reverse
Breakdown Voltage
Temperature Coefficient
(Note 6)
IR = 10 mA
IR = 1 mA
IR = 100 µA
±30
±20 ±100
±20
±150
ppm/˚C
ppm/˚C (max)
ppm/˚C
∆VR/∆IR Reverse Breakdown
Voltage Change with
Operating Current Change
IRMIN ≤ IR ≤ 1 mA
0.5
1.0
1.4
mV
1.0 mV (max)
1.8 mV (max)
1 mA ≤ IR ≤ 15 mA
3.5
8.0
mV
8.0 mV (max)
12.0
15.0
mV (max)
ZR Reverse Dynamic
Impedance
eN Wideband Noise
∆VR Reverse Breakdown
Voltage Long Term
Stability
IR = 1 mA, f = 120 Hz, IAC
= 0.1 IR
IR = 100 µA
10 Hz ≤ f ≤ 10 kHz
t = 1000 hrs
T = 25˚C ±0.1˚C
IR = 100 µA
0.5
80
120
1.1
Ω
1.1 Ω (max)
µVrms
ppm
11 www.national.com
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LM4040.PDF ] | |
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