This instrumentation amplifier INA118U/2K5 differential amplifier from Texas Instruments outputs a better quality audio signal than a mono amplifier. Its typical dual supply voltage is ±15 V, with a minimum of ±1.35 V and maximum of ±18 V. This part has a minimum operating temperature of -40 °C and a maximum of 125 °C. This device uses dual power supplies. It has a single channel per chip.