I was looking at ordering a Bourns 4610X-R2R-103LF R-2R resistor network to make a simple D/A converter, but the specs left me puzzled.
Here is the datasheet:
https://www.bourns.com/docs/Product-Datasheets/R2R.pdf
On the left side of the first page, under the heading "Product Characteristics" standard tolerance is given as ±2%. That's all it says about tolerance anywhere in the document. It says nothing about variance between individual resistors within the network. I'm guessing that is the net tolerance of network, but not the variances of the individual resistors. I would assume that the network would still give a resolution of less than half the least significant bit, or else the network would be of no practical use. I'm still puzzled why they wouldn't give numbers for the resolution of the network. How would you interpret this?
Here is the datasheet:
https://www.bourns.com/docs/Product-Datasheets/R2R.pdf
On the left side of the first page, under the heading "Product Characteristics" standard tolerance is given as ±2%. That's all it says about tolerance anywhere in the document. It says nothing about variance between individual resistors within the network. I'm guessing that is the net tolerance of network, but not the variances of the individual resistors. I would assume that the network would still give a resolution of less than half the least significant bit, or else the network would be of no practical use. I'm still puzzled why they wouldn't give numbers for the resolution of the network. How would you interpret this?