The recommended operating voltage range for the DF02S is 2.5V to 5.5V.
To ensure proper biasing, connect the VCC pin to a stable voltage source, and the GND pin to a solid ground plane. Also, ensure that the input signals are within the recommended voltage range.
The maximum current rating for the DF02S is 50mA per channel.
The DF02S has built-in ESD protection, but it's still recommended to follow proper ESD handling procedures when handling the device, such as using an ESD wrist strap or mat.
The DF02S is rated for operation up to 85°C, but it's recommended to derate the device's performance at higher temperatures. Consult the datasheet for specific derating information.