Differential Amplifier Calculator
Design single-op-amp differential amplifiers. Calculate gain, CMRR, and common-mode range.
Key Formulas
Vout = Vp×(R4/(R3+R4))×(1+R2/R1) – Vn×(R2/R1)
For G = R2/R1, need R4/R3 = R2/R1 for best CMRR.
Design single-op-amp differential amplifiers. Calculate gain, CMRR, and common-mode range.
Vout = Vp×(R4/(R3+R4))×(1+R2/R1) – Vn×(R2/R1)
For G = R2/R1, need R4/R3 = R2/R1 for best CMRR.