Unlike a mono amplifier, this instrumentation amplifier AD621BR differential amplifier from Analog Devices uses two channels to amplify audio signals. Its maximum power dissipation is 650 mW. Its typical dual supply voltage is ±3|±5|±9|±12|±15 V, with a minimum of ±2.3 V and maximum of ±18 V. This part has a temperature range of -40 °C to 85 °C. This device uses dual power supplies. It has a single channel per chip.
