X93154 INTERSIL [Intersil Corporation], X93154 Datasheet - Page 7

• Manufacturer Part Number: X93154
• Description: Digitally Controlled Potentiometer
• Manufacturer: INTERSIL [Intersil Corporation]

Applications Information (Continued)
Micro-Power LCD Contrast Control
Single Supply Variable Gain Amplifier
240K
100K
3.3V
7
50K
X93154 (R
-
+
U1A
3.3V
100K
V
TOTAL
IN
)
20K
20K
10K
3.3V
100K
-
+
+
-
U1
X93154
U1B
3.3V
300K
-12V
X93154
(R
TOTAL
)
Gain =
U1 = LMC6042
V
OUT
U1 = LMC6042
V
V
OUT
OUT
R
= -3.88
= -2.75V to -11.6V
TOTAL
10K
(
1 +
50K + R
100K
TOTAL
)
October 5, 2005
FN8180.2