Analog Interfacing to Embedded Microprocessor Systems, 2nd Edition

Resistor Networks

Some applications need better repeatability than you can get with standard 1%

resistors, but don’t need the level of precision (and cost) of going to 0.1%

resistors. Sometimes you can gain an advantage by using resistor networks.

Resistor networks are typically specified with the same resistance tolerances as

discrete resistors: 0.1%, 1%, and 5%. However, the matching between resistors

within the same network is often twice as good as the absolute resistance

accuracy. If your circuit uses multiple resistors of the same value, you can

often get better accuracy by using a resistor network rather than discrete parts.

Note, though, that ...