First off: I'm a mechanical engineer. I did do ME218 at Stanford, so I am quite conversant with electronics.
I know that there are basically three types of ADC architecture: sigma-delta, SAR and pipeline.
I have six analog signals that I need to convert to digital at the same instant of time. Since this is a mechanical device, the sampling rate can range from a few samples per second to a few kS/s - it is pretty irrelevant.
No, 'time stamping' is not quite working.
I might have nine more analog signals so (3 each of acceleration, gyro, mag, you get the reason for timing now?) This means fifteen analog signals, all to be converted at the same instant of time/on the same clock cycle.
What architecture of chip should I use?
Short of using an FPGA, is there any other way to do this using a single-chip ADC or microcontroller?