Datasheet

0 2 4 6
t − Time − s
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 10-s PERIOD
8 10
10
8
6
4
2
0
−2
−4
−6
−8
−10
f = 0.1 Hz to 10 Hz
I
K
= 1 mA
T
A
= 25°C
− Equivalent Input Noise Voltage −
V
n
Vµ
_
+
1 µF
750 Ω
1 kΩ
470 µF
3 V
TLV431
or
TLV431A
or
TLV431B
33 kΩ
TLE2027
TEST CIRCUIT FOR 0.1-Hz TO 10-Hz EQUIVALENT NOISE VOLTAGE
+
33 kΩ
10 kΩ
_
+
16 Ω
0.1 µF
160 kΩ
820 Ω
+
2200 µF
TP
2.2 µF
CRO
1 MΩ
TLE2027
0.47 µF
10 kΩ
+
200
150
10 100 1k
− Equivalent Input Noise Voltage −
f − Frequency − Hz
10k 100k
300
250
V
n
nV/
Hz
V
KA
= V
REF
I
K
= 1 mA
T
A
= 25°C
_
+
820 Ω
+
2200 µF
750 Ω
1 kΩ
470 µF
3 V
TLV431
or
TLV431A
or
TLV431B
TP
160 kΩ
160 Ω
TLE2027
TEST CIRCUIT FOR EQUIVALENT INPUT NOISE VOLTAGE
+
TLV431, TLV431A, TLV431B
SLVS139U –JULY 1996–REVISED JANUARY 2014 www.ti.com
Figure 14.
Figure 15.
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Product Folder Links :TLV431 TLV431A TLV431B