x9313wszt2 Intersil Corporation, x9313wszt2 Datasheet - Page 8

• Manufacturer Part Number: x9313wszt2
• Description: Digitally Controlled Potentiometer Xdcp? , Linear, 32 Taps, 3 Wire Interface, Terminal Voltages ? Vcc
• Manufacturer: Intersil Corporation

Applications Information
Electronic digitally controlled potentiometers (XDCP) provide
three powerful application advantages; (1) the variability and
reliability of a solid-state potentiometer, (2) the flexibility of
Basic Configurations of Electronic Potentiometers
Basic Circuits
+V
V
IN
V
O
(REG) = 1.25V (1 + R
BUFFERED REFERENCE VOLTAGE
R
V
1
REF
VOLTAGE REGULATOR
I
adj
THREE-TERMINAL POTENTIOMETER;
317
VARIABLE VOLTAGE DIVIDER
R
VW
2
2/
R
V
1
OUT
) + I
R
+
–
V
V
8
1
H
L
ADJ
+5V
-5V
= V
V
R
W
R
OP-07
/R
2
W
V
O
V
(REG)
OUT
V
W
/R
W
+12V
V
CASCADING TECHNIQUES
S
10kΩ
+V
+V
10kΩ
OFFSET VOLTAGE ADJUSTMENT
(a)
100kΩ
X9313
-12V
R
1
VW/RW
10kΩ
computer-based digital controls, and (3) the retentivity of
nonvolatile memory used for the storage of multiple
potentiometer settings or data.
–
+
+V
TL072
R
(b)
2
X
TWO-TERMINAL VARIABLE RESISTOR;
V
W
V
VARIABLE CURRENT
O
(FOR ADDITIONAL CIRCUITS SEE AN115)
V
S
V
V
V
COMPARATOR WITH HYSTERESIS
UL
LL
R
V
S
= [R
= [R
NONINVERTING AMPLIFIER
LT311A
I
R
1/
1/
1
(R
(R
V
1
1
O
+ R
+ R
R
= (1 + R
R
1
+
–
2
–
+
2
2
+5V
-5V
)] V
)] V
O
O
2/
(min)
LM308A
(max)
R
1
R
)V
2
S
April 18, 2007
FN8177.5
V
V
O
O