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AD5112 Datasheet(PDF) 12 Page - Analog Devices

Part No. AD5112
Description  Single-Channel, 128-/64-/32-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5112 Datasheet(HTML) 12 Page - Analog Devices

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AD5110/AD5112/AD5114
Data Sheet
Rev. 0 | Page 12 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
TOP VIEW
(Not to Scale)
AD5110/
AD5112/
AD5114
3
W
4
B
1
VDD
2
A
6 SCL
5 GND
8 VLOGIC
7 SDA
NOTES
1. THE EXPOSED PAD IS INTERNALLY FLOATING.
Figure 4. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD
Positive Power Supply; 2.3 V to 5.5 V. This pin should be decoupled with 0.1 µF ceramic capacitors and 10 µF
capacitors.
2
A
Terminal A of RDAC. GND ≤ VA ≤ VDD.
3
W
Wiper Terminal of RDAC. GND ≤ VW ≤ VDD.
4
B
Terminal B of RDAC. GND ≤ VB ≤ VDD.
5
GND
Ground Pin, Logic Ground Reference.
6
SCL
Serial Clock Line. This pin is used in conjunction with the SDA line to clock data into or out of the 16-bit input
registers.
7
SDA
Serial Data Line. This pin is used in conjunction with the SCL line to clock data into or out of the 16-bit input
registers. It is a bidirectional, open-drain data line that should be pulled to the supply with an external pull-up
resistor.
8
VLOGIC
Logic Power Supply; 1.8 V to VDD. This pin should be decoupled with 0.1
µF ceramic capacitors and 10 µF
capacitors.
EPAD
Exposed Pad. The exposed pad is internally floating.


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