Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Applications Information
Variable-Gain Amplifier
Figure 4 shows a potentiometer adjusting the gain of a
noninverting amplifier. Figure 5 shows a potentiometer
adjusting the gain of an inverting amplifier.
Adjustable Dual Linear Regulator
Figure 6 shows an adjustable dual linear regulator using
a dual potentiometer as two variable resistors.
Adjustable Voltage Reference
Figure 7 shows an adjustable voltage reference circuit
using a potentiometer as a voltage-divider.
VIN
VOUT
W
L
H
OUT1
OUT2
MAX8866
V+
IN
SET1
SET2
HH
W
W
LL
VOUT1
VOUT2
Figure 4. Variable-Gain Noninverting Amplifier
Figure 6. Adjustable Dual Linear Regulator
H
L
W
VIN
VOUT
+5V
IN
OUT
MAX6160
W
VREF
H
GND
L
Figure 5. Variable-Gain Inverting Amplifier
Figure 7. Adjustable Voltage Reference
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