X93154_08 INTERSIL [Intersil Corporation], X93154_08 Datasheet - Page 7

• Manufacturer Part Number: X93154_08
• Manufacturer: INTERSIL [Intersil Corporation]

Low Voltage High Impedance Instrumentation Amplifier
Micro-Power LCD Contrast Control
Single Supply Variable Gain Amplifier
240k
100k
3.3V
V
+
IN
-
7
50k
X93154 (R
-
+
10k
10k
U1A
3.3V
100k
V
TOTAL
IN
X93154 (R
)
-
+
+
-
20k
20k
3.3V
10k
U1A
U1B
3.3V
100k
50k
50k
TOTAL
)
-
+
+
-
U1
X93154
U1B
3.3V
300k
-12V
10k
10k
X93154
(R
TOTAL
)
Gain =
U1 = LMC6042
V
50k
OUT
U1 = LMC6042
V
V
OUT
OUT
+
-
R
U1C
= -3.88
= -2.75V TO -11.6V
TOTAL
50k
10k
Gain =
U1 = LT1467
(
1 +
50k
10k
50k + R
(
V
1 +
100k
OUT
TOTAL
R
TOTAL
50k
)
)
February 19, 2008
FN8180.3