看下面的描述:
ANALOG INPUTS AND OUTPUTS
The PGA4311 includes four independent channels. Each channel has a corresponding input and output pin. The input and output pins are unbalanced, and referenced to analog ground.
The input and output pins may swing within 1.25V of the analog power supplies, VA+ and VA−. Given VA+ = +5V and VA− = −5V, the maximum input or output voltage range is 7.5Vp-p.
The input and output pins may swing within 1.25V of the analog power supplies, VA+ and VA−. Given VA+ = +5V and VA− = −5V, the maximum input or output voltage range is 7.5Vp-p.