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X9421WV14IZ Datasheet, PDF (18/20 Pages) Intersil Corporation – Single Voltage Potentiometer
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Application Circuits
X9421
BUFFERED REFERENCE VOLTAGE
CASCADING TECHNIQUES
R1
+V
VW
+V
+5V
VW
OP-07
+
VOUT = VW
–
+V
X
VW
-5V
+V
VW
(a)
(b)
NONINVERTING AMPLIFIER
+5V
VS
+
LM308A
VO
–
-5V
R2
R1
VO = (1+R2/R1)VS
VOLTAGE REGULATOR
VIN
317
R1
Iadj
R2
VO (REG) = 1.25V (1+R2/R1)+Iadj R2
OFFSET VOLTAGE ADJUSTMENT
VO (REG)
R1
VS
100kΩ
10kΩ
R2
–
+
TL072
10kΩ
10kΩ
+12V
-12V
COMPARATOR WITH HYSTERITISIS
VS
–
VO
+
VO
R1 R2
VUL = {R1/CR1+R2} VO(max)
VLL = {R1/CR1+R2} VO(min)
18
FN8196.4
January 14, 2009
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