I have an application which is attempting to use the opa2349 up to about 4Khz. My gain is relatively low: around 8, but it seems that the output is rolling off faster than I would have expected.
We need the very low quiescent current otherwise wise I'd use other devices.
Specifically have an about a 10mv pp signal AC coupled to the amplifier in a non-inverting configuration. I have the biased the + input at mid-rail (0.9V)
The datasheet characterizes the opa2349 at 5.5 volts. Is there any data for the device at the lower voltages?
I have a TINA schematic but I'm new to TINA and find it very difficult to use compared to other simulators so the simulation does not give me results that even come close to what I'm seeing in the real circuit. (A competitors simulation tool using a device with similar characteristics but higher operating current does work and is closer to what I expect. It does not show the roll off even even through it has a lower bandwidth)