MAX5482EUD+ Maxim Integrated Products, MAX5482EUD+ Datasheet - Page 18

• Manufacturer Part Number: MAX5482EUD+
• Description: IC DGTL POT 10BIT NV 14-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5482EUD+

• Taps: 1024
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.25 V, ±2.5 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 50K
• Number Of Pots: Single
• Taps Per Pot: 1024
• Resistance: 50 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (3-Wire, SPI)
• Operating Supply Voltage: 2.7 V to 5.25 V
• Supply Current: 1 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: 1024-Tap 50k Nonvolatile Linear-Taper Digital Potentiometer (Voltage Divider)
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 2.7 V
• Tolerance: 25 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 12 shows the configuration for a 1st-order pro-
grammable filter using two variable resistors. Adjust R2
for the gain and adjust R3 for the cutoff frequency. Use
the following equations to estimate the gain (G) and the
3dB cutoff frequency (f
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Figure 9. Positive LCD Bias Control Using a Voltage-Divider
Figure 10. Positive LCD Bias Control Using a Variable Resistor
18
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MAX5481
MAX5482
MAX5483
MAX5484
H
L
L
5V
C
):
W
W
5V
Programmable Filter
MAX480
MAX480
30V
30V
V
OUT
V
OUT
Figure 11. Programmable Gain/Offset Adjustment
Figure 12. Programmable Filter
MAX5481
MAX5482
MAX5483
MAX5484
MAX5483
MAX5484
MAX5483
MAX5484
V
V
IN
IN
G
f
C
V
H
L
= +
L
L
=
REF
C
1
2
L
π
⎛
⎜
⎝
×
R
W
R
W
R3
R2
W
W
R
1
2
1
3
⎞
⎟
⎠
×
C
R1
V
V
OUT
OUT