MAX5496ETE+ Maxim Integrated Products, MAX5496ETE+ Datasheet - Page 17
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MAX5496ETE+
Manufacturer Part Number
MAX5496ETE+
Description
IC DGTL POT 10BIT 16-TQFN-EP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5494ETE.pdf
(20 pages)
Specifications of MAX5496ETE+
Taps
1024
Resistance (ohms)
10K
Number Of Circuits
2
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Non-Volatile
Interface
3-Wire Serial
Voltage - Supply
2.5 V ~ 5.25 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Resistance In Ohms
10K
Number Of Pots
Dual
Taps Per Pot
1024
Resistance
10 KOhms
Wiper Memory
Non Volatile
Digital Interface
Serial (3-Wire, SPI)
Operating Supply Voltage
2.7 V to 5.25 V
Supply Current
1.5 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
1024-Tap Dual 10k Nonvolatile Linear-Taper Digital Potentiometer (Variable Resistor)
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
Figures 12 and 13 show an application where the volt-
age-divider or variable resistor is used to make an
adjustable, positive LCD-bias voltage. The op amp pro-
vides buffering and gain to the resistor-divider network.
Figure 14 shows the configuration for a 1st-order pro-
grammable filter. The gain of the filter is adjusted by
R2, and the cutoff frequency is adjusted by R3. Use the
following equations to calculate the gain (G) and the
3dB cutoff frequency (f
Figure 12. Positive LCD Bias Control Using a Voltage-Divider
Figure 14. Programmable Filter
1/2 MAX5494/MAX5495
1/2 MAX5498/MAX5499
1/2 MAX5496–MAX5499
1/2 MAX5496–MAX5499
V
______________________________________________________________________________________
IN
H_
L_
5V
L_
L_
Positive LCD Bias Control
C
C
10-Bit, Dual, Nonvolatile, Linear-Taper
).
W_
R3
R2
W_
W_
Programmable Filter
MAX480
30V
R1
V
OUT
V
OUT
Figure 15 shows an application using the MAX5498/
MAX5499 to adjust the gain and nullify the offset voltage.
Figure 13. Positive LCD Bias Control Using a Variable Resistor
Figure 15. Gain- and Offset-Voltage Adjustment Circuit
Digital Potentiometers
1/2 MAX5496–MAX5499
1/2 MAX5498/MAX5499
1/2 MAX5498/MAX5499
Gain and Offset Voltage Adjustment
V
IN
f
C
L_
H_
L_
=
V
G
REF
2
L_
π
= +
1
×
W_
W_
W_
5V
R
1
R
R
3
2
1
×
MAX480
C
30V
V
OUT
V
OUT
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