What is the maximum output swing I can get without clipping with a 3.3V / GND asymetrical supply ? I found the datasheet confusing on this point.
I read on datasheet page 4 that minimum V_OUTCMR is 1.1V. Does it mean that I will get clipping if (V_OUT+ + V_OUT-) / 2 < 1.1V ?
You also specify on page 4 "Output Voltage Low, Either Output Pin" (see figure below). Its value is 140mV at 3V 5mA for instance. What does this mean ? Does it mean that I won't get clipping if OUT+ and OUT- single ended voltage are above 140mV ? Is this this characterisitc I should look to evaluate the maximum voltage swing of the op amp ?
To give you some context, I want to use the LTC6404 to drive a 1.8V differential ADC with an input span of 2Vpp, and a common-mode voltage of 0.95V. Currently, the LTC6404 use a 3.3V / -1.8V supply to be sure there is no clipping around ground. Each output of the opamp is swinging between 0.45V and 1.45V, which makes me think there is no clipping, because 0.45V is above 140mV. But, I think that the -1.8V rail is not necessary in the end and that I won't get clipping if I use ground instead. I just need you to clarify the datasheet to make sure of it.