Unlike a mono amplifier, this differential amplifier ADA4938-2ACPZ-R2 differential amplifier from Analog Devices uses two channels to amplify audio signals. Its typical dual supply voltage is ±5 V, with a minimum of ±2.25 V and maximum of ±5.5 V. This part has a temperature range of -40 °C to 85 °C. It has 2 channels per chip. This device uses one or two power supplies.