DOUBLE THE OUTPUT CURRENT TO A LOAD WITH THE DUAL OPA2604 AUDIO OP AMP. By Morgan Monks. Headphones typically have an impedance of 40Ω to 300Ω. By using the dual OPA2604 and four resistors one can economically drive a 2.8V peak signal into the 40Ω headphones.

DOUBLE THE OUTPUT CURRENT TO A LOAD WITH THE DUAL OPA2604 AUDIO OP AMP. By Morgan Monks. Headphones typically have an impedance of 40Ω to 300Ω. By using the dual OPA2604 and four resistors one can economically drive a 2.8V peak signal into the 40Ω headphones.