PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006
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TYPICAL CHARACTERISTICS
1.235
1.2345
1.234
Reference Voltage (V)
1.2335
1.233
1.2325
1.232
1.2315
1.231
10
1.2305
−40
−20
0
20
40
60
80
100
Temperature (5C)
0
0
2
4
6
8
10
10 V
20
5V
Feedback Current (nA)
V
REF
LM4041 (Adj)
I
Z
= 1 mA
100
90
80
255C
70
60
50
40
30
−405C
1255C
LM4041 (Adj)
I
Z
= 1 mA
855C
Figure 5. Reference Voltage vs Temperature
(for Different Reverse Voltages)
Reverse (Output) Voltage (V)
Figure 6. Feedback Current vs Reverse (Output) Voltage
(for Different Temperatures)
1000
LM4041 (Adj)
I
Z
= 1 mA
DI
Z
= 0.1 I
Z
T
j
= 255C
1000
100
Impedance (W)
Capacitor
Line
100
Impedance (Ω)
Capacitor
Line
C
L
= 0
mF
LM4041 (Adj)
I
Z
= 150
mA
DI
Z
= 0.1 I
Z
T
j
= 25°C
10 V
10
5V
C
L
= 0
mF
10
5V
C
L
= 1
mF
1
1.23 V
2.5 V
0.1
100
1k
10k
Frequency (Hz)
100k
1M
10 V
1.23 V
1
2.5 V
C
L
= 1
mF
0.1
100
1k
10k
Frequency (Hz)
100k
1M
Figure 7. Output Impedance vs Frequency
Figure 8. Output Impedance vs Frequency
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