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| X9252_14 Datasheet, PDF (16/19 Pages) Intersil Corporation – Quad Digitally-Controlled Potentiometer | |||
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X9252
Applications Information
Basic Configurations of Electronic Potentiometers
VR
+VR
RW
FIGURE 10. THREE TERMINAL POTENTIOMETER; VARIABLE
VOLTAGE DIVIDER
Application Circuits
VS
+
VO
-
R2
R1
VO = (1+R2/R1)VS
FIGURE 12. NONINVERTING AMPLIFIER
R1
R2
VS
+5V
100kï
-
VO
+
TL072
10kï
10kï
+5V
10kï
FIGURE 14. OFFSET VOLTAGE ADJUSTMENT
I
FIGURE 11. TWO TERMINAL VARIABLE RESISTOR;
VARIABLE CURRENT
VIN
317
VO (REG)
R1
Iadj
R2
VO (REG) = 1.25V (1+R2/R1) + Iadj R2
FIGURE 13. VOLTAGE REGULATOR
VS
-
VO
+
R1 R2
VUL = {R1/(R1+R2)} VO(max)
RLL = {R1/(R1+R2)} VO(min)
FIGURE 15. COMPARATOR WITH HYSTERISIS
Submit Document Feedback 16
FN8167.3
July 24, 2014
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