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LM4040 Datasheet(PDF) 11 Page - Micrel Semiconductor

Part # LM4040
Description  Precision Micropower Shunt Voltage Reference
PDF  16 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

LM4040 Datasheet(HTML) 11 Page - Micrel Semiconductor

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January 2000
11
LM4040/4041
LM4040/4041
Micrel
LM4041 Typical Characteristics
LM4041-ADJ
85
°C
25
°C
-40
°C
-40
°C
85
°C
Reference Voltage vs. Output
Voltage and Temperature
1.244
1.240
1.236
1.232
1.228
1.224
1.220
0
2
4
6
8
10
OUTPUT VOLTAGE (V)
Reference Voltage vs.
Temperature and Output Voltage
1.244
1.240
1.236
1.232
1.228
1.224
1.220
-40 -20
0
20
40
60 80 100
TEMPERATURE (
°C)
LM4041-ADJ
V
OUT
= V
REF
V
OUT
= 5V
V
OUT
= 10V
I
R
= 1mA
T
J
= 85
°C
LM4041-ADJ
T
J
= 25
°C, -40°C
Feedback Current vs.
Output Voltage and Temperature
0
2
4
6
8
10
OUTPUT VOLTAGE (V)
100
80
60
40
20
0
Output Saturation
0
2
4
6
8
10
12
OUTPUT CURRENT (mA)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
LM4041-ADJ
V
ADJ
= V
REF
+ 5µV
-40
°C
85
°C
25
°C
LM4041-ADJ
T
J
= 25
°C
I
R = 1mA
∆I
R
= 0.1I
R
C
L
= 0
C
L
=1µF
X
C
V
OUT = 10V
5V
2.5V
1.23V
Output Impedence
vs. Frequency *
1K
100
10
1
0
100
1k
10k
100k
1M
FREQUENCY (Hz)
C
L
= 0
C
L
=1µF
X
C
5V
2.5V
1.23V
FREQUENCY (Hz)
100
1k
10k
100k
1M
1K
100
10
1
0
Output Impedence
vs. Frequency *
V
OUT = 10V
LM4041-ADJ
T
J = 25 °C
I
R = 1mA
∆I
R = 0.1 IR
FB STEPS (V)
0
2
4
6
8
10
T
J
= 25
°C
LM4041-ADJ
0
2
4
6
8
100
80
60
40
20
0
Reverse Characteristics †
OUTPUT VOLTAGE (V)
LM4041-ADJ
T
J
= -40
°C
25
°C
85
°C
0
10
20
30
40
-40
°C
OUTPUT
INPUT
-40
°C
Large Signal Response ‡
10
8
6
4
2
0
RESPONSE TIME (µs)
* Output Impedance vs. Freq.
Test Circuit
‡ Large Signal Response
Test Circuit
† Reverse Characteristics
Test Circuit
FB
2V / step
VOUT
IR
( + )
( – )
LM4041-ADJ
V
VOUT
LM4041 - ADJ
( + )
FB
( - )
100k
INPUT
+ 15V
5.1k
–
+
CL
120k
FB
IR



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