LM4040 Micrel Semiconductor, LM4040 Datasheet - Page 11

• Manufacturer Part Number: LM4040
• Description: Precision Micropower Shunt Voltage Reference
• Manufacturer: Micrel Semiconductor

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