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AD5122A Datasheet(PDF) 12 Page - Analog Devices

Part No. AD5122A
Description  Quad Channel, 128-/256-Position, I2C Nonvolatile Digital Potentiometer
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5122A Datasheet(HTML) 12 Page - Analog Devices

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AD5123/AD5143
Data Sheet
Rev. A | Page 12 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. INTERNALLY CONNECT THE
EXPOSED PAD TO VSS.
AD5123/
AD5143
TOP VIEW
(Not to Scale)
PIN 1
INDICATOR
1
A1
2
W1
3
B1
4
W3
11 B4
12 VDD
10 W4
9
B2
Figure 4. Pin Configuration
Table 7. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
A1
Terminal A of RDAC1. VSS ≤ VA ≤ VDD.
2
W1
Wiper Terminal of RDAC1. VSS ≤ VW ≤ VDD.
3
B1
Terminal B of RDAC1. VSS ≤ VB ≤ VDD.
4
W3
Wiper Terminal of RDAC3. VSS ≤ VW ≤ VDD.
5
B3
Terminal B of RDAC3. VSS ≤ VB ≤ VDD.
6
VSS
Negative Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.
7
A2
Terminal A of RDAC2. VSS ≤ VA ≤ VDD.
8
W2
Wiper Terminal of RDAC2. VSS ≤ VW ≤ VDD.
9
B2
Terminal B of RDAC2. VSS ≤ VB ≤ VDD.
10
W4
Wiper Terminal of RDAC4. VSS ≤ VW ≤ VDD.
11
B4
Terminal B of RDAC4. VSS ≤ VB ≤ VDD.
12
VDD
Positive Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.
13
SCL
Serial Clock Line. Data is clocked in at the logic low transition.
14
SDA
Serial Data Input/Output.
15
ADDR
Programmable Address for Multiple Package Decoding.
16
GND
Ground Pin, Logic Ground Reference.
EPAD
Internally Connect the Exposed Paddle to VSS.


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