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Thanks! So basically either you go for "built-in, quick, low power, but with less steps" or you can go for "slow, precise, not so low powe, but needing extra filtering steps", right?Cheers
Another thing with the DAC is that you can change the reference voltage or use an external one at an arbitary voltage, So in the end you end up with more than 5 bits worth of steps with some clever programming
Keep in mind that to clock out 10-bits over PWM takes 1024 periods, even with 16 MHz PWM, max update rate less that 16 kHz.