Hello there,
I was wondering if there was a single chip or 2 chip solution for a single channel 12-bit (or greater) DAC or DDS arbitrary which has all of the following features:
1. Be more than 10-bits.
2. Handle an output frequency range of 0.1Hz to 1kHz, this is not a very high frequency application.
3. Have the ability to ramp-up and ramp-down, or have the ability to do some sort of amplitude modulation.
4. Have SPI/I2C
5. (if available) has internal memory for a sin wave or an arbitrary waveform. I do not want to occupy the main MCU just for generating the wave.
6. Be less than 100mW (it is not an RF application, it is a biomedical application).
Don't mean to pull up competition, but the closest I have found to this (even though it is much faster than what I need) is the AD9102 from Analog Devices.
Thanks a lot!
Ashwati