Editing Digitally Programmable Potentiometers

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{{mergeto|Digital Potentiometers}}
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The digital POT made by analog devices (AD5204) has 255 positions can be adjusted by the microcomputer that can receive commands from the computer. This is a great way for analog circuitry to have digital control. This is a chip with 4 digitally controlled POTs and the pots can be daisy chained to have multiple chips controled by a single SPI interface.
The digital Potentiometers made by analog devices (AD5204) has 255 positions can be adjusted by the microcomputer that can receive commands from the computer. This is a great way for analog circuitry to have digital control. This is a chip with 4 digitally controlled POTs and the pots can be daisy chained to have multiple chips controled by a single SPI interface.
 
  
AD5204—4-Channel with daisy chain ability
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[[Image:AD5204_diagram.png]]
AD5206—6-Channel without daisy chain ability
 
Potentiometer Replacement
 
10 kV, 50 kV, 100 kV
 
3-Wire SPI-Compatible Serial Data Input
 
 
 
Digikey Part Number: AD5204BN10-ND
 
 
 
 
 
AD5204 - 4-Channel, 256-Position Digital Potentiometer
 
 
 
http://www.analog.com/images/Product_Descriptions/40826AD5204_S.jpg
 
 
 
Datasheet: http://www.analog.com/UploadedFiles/Data_Sheets/140808745AD5204_6_0.pdf
 
 
 
Availability:
 
* Free samples: http://www.analog.com/en/prod/0,,761_797_AD5204,00.html#price
 
* Digikey: http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=1480&Row=284443&Site=US (10k version - $5.02)
 
 
 
Eagle footprint data:
 
[[Image:AD5204a.png]]
 
 
 
[[Media:AD5204.zip|Eagle library (footprint, schematic symbol)]]
 
 
 
[[Category:Components]]
 

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