Diodes LM4040 - Manual (Page 7)

LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
LM4040
Document number: DS33195 Rev. 5 - 2
7 of 12
www.diodes.com
March 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics LM4040-3.0
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
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
10k 100k 1M 100 1k
Z
,
R
E
F
E
R
E
N
C
E I
M
P
ED
A
N
C
E (
)
R
Ω
100
0.01
0.1
1
10
FREQUENCY (Hz)
Reference Impedance vs. Frequency
1k 10k 100k 10 100
FREQUENCY (Hz)
Noise Voltage vs. Frequency
NOIS
E (
n
V
/
Hz
)
√
650
450
550
600
500
400
1 2 4 -1 0
V , REVERSE VOLTAGE (V)
Reference Current vs. Voltage
R
I,
R
EV
E
R
SE CU
R
R
ENT (
µ
A)
R
500
400
-200
-300
0
-100
200
100
300
3
T = 25°C
A