Divider results
Vout
7.200 V
Ratio
60.0%
Equivalent resistance
25.00 kΩ
Bottom resistor share
60.00%
Voltage divider
Dial in the exact drop from Vin to the sense node.
Applies the textbook divider equations to convert Vin, top resistor, and bottom resistor into a Vout with ratio highlights plus equivalent resistance.
12.00 V
Input
7.200 V
Output
60.0%
Bottom share
Quick presets
Use higher resistor values for ultra-low quiescent dividers—but watch sense node impedance constraints.
Inputs
V
Ω
Ω
Resistor contributions
Top 40.0% • Bottom 60.0%
Balance the two for midpoint rails, skew for sensor scaling.
Loading guidance
Keep sense node impedance < 10 kΩ for most ADCs.
Add a buffer op-amp if your MCU input leakage is high.
Design notes
- Use matched tolerance resistors (0.1% or better) for precision sensor scaling.
- Add a bypass capacitor at Vout for noise-sensitive ADC references.
- Remember divider current drains batteries continuously—aim for <100 µA on low-power nodes.