TL431 / TL431A / TL431B
®
Precision programmable References
TM
PRODUCTION DATA SHEET
TYPICAL CHARACTERISTICS
6
5
4
f = 0.1 to 10Hz
IK = 10mA
TA = 25 °C
3
2
1
0
-1
-2
-3
-4
-5
-6
0
2
4
68
10
(t) Time - (s)
Figure 11 – Equivalent Input Noise Voltage over a 10 – Second Period
19.1V
1k
VCC
910
500µF
2000µF
VCC
1µF
TL431/A
& TL431B (DUT)
TLE2027
AV = 10V/mV
820
16
TLE2027
AV = 2V/V
2.2µF
16k
16k
1µF
33k
33k
CRO
1M
0.1µF
VEE
VEE
Test Circuit for 0.1Hz to 10Hz Equivalent Input Noise Voltage
Copyright © 1999
Rev. 1.4, 2006-09-26
Microsemi
Page 8
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
MICROSEMI [ Microsemi ]
