Resistor voltage dividing
The voltage at the midpoint when the voltage is divided by the resistor is determined. In actual design, the voltage at the midpoint will not be constant due to errors in resistance and voltage.
V
Ohm
ohm
SI prefixes accepted (4k7 / 1M / 10m / 220). Upper-case M = mega, lower-case m = milli
Voltage
2.7211V
Max Voltage2.9057 V
min Voltage2.5381 V
Voltage range0.3675 V p-p
Advanced — Voltage tolerance, R1 tolerance, R2 tolerance
±%
±%
±%
Derived values
- Division ratio
- 0.825
- R2 / (R1 + R2)
- Divider current
- 57.895 µA
- Vcc / (R1 + R2)
- Series resistance
- 57 kΩ
- R1 + R2
- Divider dissipation
- 191.05 µW
- Vcc² / (R1 + R2)
The output impedance (R1∥R2) is 8.246 kΩ. When driving an ADC sampling input or an op-amp, a higher value contributes more error.
History
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