Current Sense Resistor Calculator

Calculate current sense resistor values. Optimize for ADC resolution and power dissipation.

Current to Measure I_max (A)

Sense Voltage V_sense (mV)

ADC Reference (V)

ADC Resolution (bits)

Amplifier Gain

Temperature Drift (ppm/°C)

R_sense = V_sense/I_max

Output: V_out = I×R_sense×Gain

Current Resolution: I_res = V_LSB/(Gain×R_sense)