Difference between revisions of "Digitally Programmable Potentiometers"
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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. | 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. | ||
| − | [[Image: | + | Digikey Part Number: AD5204BN10-ND |
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| + | AD5204 - 4-Channel, 256-Position Digital Potentiometer | ||
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| + | http://www.analog.com/images/Product_Descriptions/40826AD5204_S.jpg | ||
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| + | Datasheet: http://www.analog.com/UploadedFiles/Data_Sheets/140808745AD5204_6_0.pdf | ||
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| + | 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)]] | |
Revision as of 22:42, 19 July 2006
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.
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:
