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X9401_15 Datasheet, PDF (16/20 Pages) Intersil Corporation – Quad, 64 Tap, Digitally Controlled Potentiometer | |||
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X9401
Applications information
Basic Configurations of Electronic Potentiometers
VR
+VR
VW/RW
THREE TERMINAL POTENTIOMETER;
VARIABLE VOLTAGE DIVIDER
Application Circuits
NONINVERTING AMPLIFIER
VS
+
â
VO
R2
R1
VO = (1+R2/R1)VS
OFFSET VOLTAGE ADJUSTMENT
R1
R2
VS
â
100Kï
+
VO
TL072
10Kï
10Kï
10Kï
+5V
ATTENUATOR
R1
R2
â
VS
+
VO
R3
R4
ALL RS = 10Kï
VO = G VS
-1/2 ï£ G ï£ +1/2
16
I
TWO TERMINAL VARIABLE RESISTOR;
VARIABLE CURRENT
VOLTAGE REGULATOR
VIN
317
R1
IADJ
R2
VO (REG) = 1.25V (1+R2/R1)+IADJ R2
VO (REG)
COMPARATOR WITH HYSTERESIS
VS
â
VO
+
R1
R2
VUL = {R1/(R1+R2)} VO(MAX)
VLL = {R1/(R1+R2)} VO(MIN)
C
VS
R
FILTER
+
â
VO
R2
R1
GO = 1 + R2/R1
fc = 1/(2ï°RC)
FN8190.5
September 14, 2015
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