Resistive voltage dividers

摘要

Whether your application is a precision voltage reference or an instrumentation amplifier, voltage dividers account for a large percentage of precision resistor applications. Resistive voltage dividers are simple circuits, yet questions and misconceptions still pop up when discussing their design:rn1. If my system is specified to operate from -55° to 125℃, how much will my output voltage vary from the ideal?rn2. What happens to the divider output over a range of temperatures?rn3. My output voltage will be within ±0.1% of ideal if I use ±0.1% resistors, right?