MAX5387MAUD+ Maxim Integrated Products, MAX5387MAUD+ Datasheet - Page 13

• Manufacturer Part Number: MAX5387MAUD+
• Description: IC POT DGTL 256-TAP 14TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5387MAUD+

• Taps: 256
• Resistance (ohms): 50K
• Number Of Circuits: 2
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.6 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 50K
• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 200 Ohms
• Wiper Memory: Volatile
• Digital Interface: I2C
• Operating Supply Voltage: 2.6 V to 5.5 V
• Supply Current: 1 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Description/function: Dual Low Voltage Digital Potentiometer
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.6 V
• Tolerance: 25 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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 12. Variable Gain I-to-V Converter
Figure 11. Adjustable Voltage Reference
Variable Gain Current to Voltage Converter
I S
______________________________________________________________________________________
MAX6037
GND
R3
IN
3.0V
V
OUT
OUT
Dual, 256-Tap, Volatile, Low-Voltage
= -I
W
Linear Taper Digital Potentiometer
S
W
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.
Figure 14. Positive LCD Bias Control Using a Variable Resistor
Figure 13. Positive LCD Bias Control Using a Voltage-Divider
Offset-Voltage Adjustment Circuit
+5V
+5V
H
L
H
L
W
W
Programmable Filter
V OUT
V OUT
13