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Re: [AVR-Chat] Are 1% resistors good enough for ADC voltage dividers?

2005-01-21 by Dave VanHorn

At 07:43 PM 1/20/2005, James Washer wrote:


>I'm just starting to play with the ADC capabilities of the AVR... Are 1% 
>resistors what everyone uses, or do I need something more precise?

It all depends..

There's all kinds of fun to be had in precision land, but remember, every 
resistor is exactly what it is.. It may be marked 10,000 ohms, and actually 
be 10,050 ohms, but a meter can sort that out for you.

I use 1% resistors in some designs, and 5% in others, it depends on the 
relative cost and availability, against what I'm trying to accomplish.

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