MAX5392 MAXIM [Maxim Integrated Products], MAX5392 Datasheet - Page 14

• Manufacturer Part Number: MAX5392
• Description: Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer
• Manufacturer: MAXIM [Maxim Integrated Products]

Dual, 256-Tap, Volatile, Low-Voltage,
Linear Taper Digital Potentiometer
Figure 11 shows an adjustable voltage reference circuit
using a potentiometer as a voltage-divider.
Figure 12 shows a variable gain current to voltage con-
verter using a potentiometer as a variable resistor.
Figure 13 shows a positive LCD bias control circuit using
a potentiometer as a voltage-divider.
Figure 14 shows a positive LCD bias control circuit using
a potentiometer as a variable resistor.
Figure 11. Adjustable Voltage Reference
Figure 12. Variable Gain I-to-V Converter
14
Variable Gain Current to Voltage Converter
_____________________________________________________________________________________
I S
Adjustable Voltage Reference
MAX6037
GND
IN
R3
+2.5V
OUT
V
OUT
W
W
= I
S
x ((R3 x (1 + R2/R1)) + R2)
LCD Bias Control
H
L
H
L
V
R1
REF
R2
V OUT
Figure 15 shows a programmable filter using a dual
potentiometer.
Figure 16 shows an offset voltage adjustment circuit
using a dual potentiometer.
PROCESS: BiCMOS
Figure 13. Positive LCD Bias Control Using a Voltage Divider
Figure 14. Positive LCD Bias Control Using a Variable Resistor
Offset Voltage Adjustment Circuit
1.8V
1.8V
H
H
L
L
W
W
Chip Information
Programmable Filter
V OUT
V OUT