X9116 Xicor, X9116 Datasheet - Page 7

• Manufacturer Part Number: X9116
• Description: Digitally Controlled Potentiometer (XDCP)
• Manufacturer: Xicor

X9116
Basic Configurations of Electronic Potentiometers
Basic Circuits
REV 1.2 2/5/03
+V
Buffered Reference Voltage
R
V
1
REF
V
IN
V
O
(REG) = 1.25V (1+R
Three terminal potentiometer;
variable voltage divider
Voltage Regulator
V
W
I
adj
V
317
OUT
+
–
V
V
R
+5V
–5V
= V
H
L
2
V
OP-07
R
W
2
/R
/R
W
R
1
)+Iadj R
1
V
OUT
V
W
2
/R
V
W
O
Cascading Techniques
(REG)
+V
+V
www.xicor.com
(a)
V
W
/R
W
+V
(for additional circuits see AN115)
V
V
V
Comparator with Hysteresis
(b)
S
UL
LL
X
Two terminal variable resistor;
variable current
= {R
= {R
LT311A
V
W
R
1
1
/(R
/(R
1
1
1
+R
+R
Characteristics subject to change without notice.
R
2
–
+
2
2
)} V
)} V
V
R
V
O
O
S
(min)
(max)
Noninverting Amplifier
I
V
O
= (1+R
R
1
+
–
+5V
–5V
V
2
O
/R
1
LM308A
)V
S
R
2
V
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O