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Old 31st January 2005, 02:02 PM   #1
ZERS is offline ZERS  France
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Default digital potentiometer/trimmer ?

Hi all,

I'm looking for a digital potentiometer/trimmer (single channel) that I could managed with a PIC.
The idea is to send a command to this potentiometer to increase or decrease the value of the resistor.

It might be something equivlaent to the TDA1074A, but this part is a dual potentiometer. I want a single one.

Any idea?
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Old 31st January 2005, 02:12 PM   #2
macboy is offline macboy  Canada
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Many people like the TI PGA2311 (and probably an equal number do not like it!). It is two channel, but that's still a lot better fit than the TDA1074A. Try a search in the digital forum.

For non-audio use, you could try the MCP41xxx from Microchip (the people who make the PIC). They are single, 256 step linear-taper digital pots. Simple to interface with the PIC and dirt cheap too.
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Old 31st January 2005, 04:33 PM   #3
ZERS is offline ZERS  France
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Quote:
Originally posted by macboy
For non-audio use, you could try the MCP41xxx from Microchip (the people who make the PIC). They are single, 256 step linear-taper digital pots. Simple to interface with the PIC and dirt cheap too.
Interesting...
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Old 31st January 2005, 04:37 PM   #4
Keld is offline Keld  Sweden
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Xicor x9c102 -x9c104

http://www.intersil.com/products/dev....asp?pn=X9C102
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