TL1431 Datasheet, PDF (9/28 Pages) STMicroelectronics – PROGRAMMABLE VOLTAGE REFERENCE

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19.1 V
1 kΩ
TL1431
PRECISION PROGRAMMABLE REFERENCE
SLVS062L – DECEMBER 1991 – REVISED OCTOBER 2007
EQUIVALENT INPUT-NOISE VOLTAGE
OVER A 10-SECOND PERIOD
6
5
4
3
2
1
0
−1
−2
−3
−4
f = 0.1 to 10 Hz
−5
I_KA = 10 mA
T_A = 25°C
−6
0
2
4
6
8
10
t − Time − s
500 µF
910 Ω
2000 µF
V_CC
TL1431
(DUT)
820 Ω
16 Ω
0.1 µF
TLE2027
+ ^{AV = 10 V/mV}
−
16 Ω
160 kΩ
V_CC
16 Ω
1 µF
1 µF
+ TLE2027
−
33 kΩ
33 kΩ
2.2 µF
A_V = 2 V/V
CRO 1 MΩ
V_EE
V_EE
TEST CIRCUIT FOR 0.1-Hz TO 10-Hz EQUIVALENT INPUT-NOISE VOLTAGE
Figure 11.
Copyright © 1991–2007, Texas Instruments Incorporated
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