Thanks for the suggestion guys I understand it sounds naive to say "a few MHz" but the test is to try out a large variety of frequencies for more data points but I appreciate your suggestions.
Let me describe the actual application since you all were nice enough to respond. We are running cells and "drops" through a microfluidics chip and merging them. This is where this field effect voltage is located. At the site of the merge, the polarity of the surface of these cells and drops prevent them from combining but if you apply a field to the surface of the drops they have the same polarity and it allows them to absorb into each other for the brief moment we pass them through the field.
Basically, we are doing tiny chemical reactions on individual cells and this signal "mixes" them. I tried a DC field but this actually sheds the cells due to the force exerted upon them. Playing with a wide variety of voltages and frequencies would allow us to find an optimal value to maximize successful merges.
Another thing this implies is that this signal can be nasty, all I care about is that the signal is symmetric so it causes no force on the cells.
- dom0
"That in itself would be possible with very high speed, off the shelf devices, but not at a 1 kVpp swing." So you know of a device near these values? I was looking for more of a complete package but I'll probably start with Kane's idea if not.
- MasterTech
"one can get away with fast pulses to create harmonic content instead of pure sinewaves"
I didn't actually know of this, I described the actual application above, would that idea be nearly a full custom application?
- KaneTW
This is what I was thinking if I couldn't find something off the shelf. I'd have to make a few devices for the frequency ranges for this single test (barf). But this is how the current board is working so I at least have something to work off of at least.
- Berni
This is a new suggestion I haven't seen before, thank you!