MAX5450EUB+ Maxim Integrated Products, MAX5450EUB+ Datasheet - Page 9

• Manufacturer Part Number: MAX5450EUB+
• Description: IC DGTL POT DUAL 256-TAP 10-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX5450EUB+

• Taps: 256
• Resistance (ohms): 10K
• Number Of Circuits: 2
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Volatile
• Interface: Up/Down
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resistance In Ohms: 10K
• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 10 KOhms
• Wiper Memory: Volatile
• Digital Interface: Up/Down
• Operating Supply Voltage: 2.7 V to 5.5 V
• Supply Current: 2 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: Dual, 256-Tap, Up/Down Interface Digital Potentiometers
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Tolerance: 25 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. Simplified Digital Potentiometer Resistor Array
Figure 4. MAX5451/MAX5453/MAX5455 Simplified Functional
Diagram
INC1
U/D1
INC2
U/D2
GND
V
CS2
CS1
DD
UP/DOWN
COUNTER
POWER-ON
UP/DOWN
COUNTER
R
R
255
254
RESET
R
R
2
1
_______________________________________________________________________________________
H
L
MAX5451
MAX5453
MAX5455
S
S
S
S
S
S
POSITION
DECODER
POSITION
DECODER
256
255
254
3
2
1
Dual, 256-Tap, Up/Down Interface,
W
H1
W1
H2
W2
L1
L2
Figure 3. MAX5450/MAX5452/MAX5454 Simplified Functional
Diagram
Figure 5. Adjustable Current to Voltage Converter
GND
V
CS2
Digital Potentiometers
CS1
INC
U/D
DD
I
S
UP/DOWN
POWER-ON
UP/DOWN
COUNTER
COUNTER
RESET
R
3
V
DD
R
MAX4250
2
MAX5450
MAX5452
MAX5454
DECODER
DECODER
POSITION
POSITION
V
OUT
V
OUT
I
S
MAX5450
MAX5452
MAX5454
= R
3
(
1 +
R
R
2
1
)
+ R
2
L
W
R
1
W1
W2
L1
L2
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