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AD5142ABCPZ10-RL7 Datasheet(PDF) 23 Page - Analog Devices

Part # AD5142ABCPZ10-RL7
Description  Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5142ABCPZ10-RL7 Datasheet(HTML) 23 Page - Analog Devices

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Data Sheet
AD5122A/AD5142A
THEORY OF OPERATION
analog.com
Rev. D | 23 of 29
Table 14. Address Bits
A3
A2
A1
A0
Potentiometer Mode
Linear Gain Setting Mode
Stored Channel Memory
Input Register
RDAC Register
Input Register
RDAC Register
1
X1
X1
X1
All channels
All channels
All channels
All channels
Not applicable
0
0
0
0
RDAC1
RDAC1
RWB1
RWB1
RDAC1/RWB1
0
1
0
0
Not applicable
Not applicable
RAW1
RAW1
Not applicable
0
0
0
1
RDAC2
RDAC2
RWB2
RWB2
RAW1
0
1
0
1
Not applicable
Not applicable
RAW2
RAW2
Not applicable
0
0
1
0
Not applicable
Not applicable
Not applicable
Not applicable
RDAC2/RWB2
0
0
1
1
Not applicable
Not applicable
Not applicable
Not applicable
RAW2
1 X = don’t care.
Table 15. Control Register Bit Descriptions
Bit Name
Description
D0
RDAC register write protect
0 = wiper position frozen to value in EEPROM memory
1 = allows update of wiper position through digital interface (default)
D1
EEPROM program enable
0 = EEPROM program disabled
1 = enables device for EEPROM program (default)
D2
Linear setting mode/potentiometer mode
0 = potentiometer mode (default)
1 = linear gain setting mode
D3
Burst mode (I2C only)
0 = disabled (default)
1 = enabled (no disable after stop or repeated start condition)



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