Hi,
I'm not sure if this is the correct sub-forum to post this in, but I had a question about recording a high speed analog signal with a microcontroller. I have an amplifier circuit set up to condition a 150KHz signal. The shape of the waveform is mostly sinusoidal, but with irregularities that must be recorded, so the signal must be sampled at well above the Nyquist frequency. The on-board ADCs on the MSP430 microcontrollers (the one I'm using is the MSP430f5659) have max sample rates of around 200KSPS at 10 or 12 bits, which is nowhere near fast enough. My question is what's the best way to get this data onto the MCU? Are there any external ADCs that work well/easily with MSP? Additionally, are there any ADCs that come paired with memory for recording data? I don't think the MCU will be fast enough to read data coming off of the ADC (10-12Bits per sample at 2MSPS minimum), but I could be wrong about that.
Thanks,
Timothy McGuire
