Lm4040, Precision micropower shunt voltage references, Typical characteristics – Diodes LM4040 User Manual
Page 6: A product line of diodes incorporated
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
LM4040
Document number: DS33195 Rev. 5 - 2
6 of 12
March 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics
LM4040-2.5
Δ
V (
%
)
RE
F
1.00
0.75
-0.75
-1.00
-0.25
-0.50
0.25
0.00
0.50
I = 100µA
R
40
80
120
-40
0
TEMPERATURE (°C)
Reference Voltage
Temperature Coefficient
40
80
120
-40
0
TEMPERATURE (°C)
Reference Voltage
Temperature Coefficient
Δ
V (
%
)
RE
F
1.00
0.75
-0.75
-1.00
-0.25
-0.50
0.25
0.00
0.50
I = 1mA
R
10k
100k
1M
100
1k
FREQUENCY (Hz)
Reference Impedance vs. Frequency
T = 25°C
I = 100µA
A
R
C = 0
L
C = 1.0µF
Tantalum
L
T = 25°C
I = 1mA
A
R
10k
100k
1M
100
1k
Z
,
REF
E
RE
NCE I
M
PEDANCE
(
)
R
Ω
100
0.01
0.1
1
10
C = 0
L
C = 1.0µF
Tantalum
L
FREQUENCY (Hz)
Reference Impedance vs. Frequency
1
2
3
-1
0
FREQUENCY (Hz)
Noise Voltage vs. Frequency
T = 25°C
I = 100µA
A
R
NOIS
E (
n
V
/
Hz
)
√
500
480
340
300
380
360
440
420
460
400
320
1
2
3
-1
0
V , REVERSE VOLTAGE (V)
Reference Current vs. Voltage
R
I,
R
EVE
R
SE
C
U
R
R
EN
T (
µ
A
)
R
500
400
-200
-300
0
-100
200
100
300
T = 25°C
A