i'm want to produce an AC signal an +-3.3V (or 3.3v-0) voltage supply with a small frequency around 1kHz-2KHz and a low output voltage too(200mV,for example), where the frequency stability is not important but the wave amplitude stability is.
I'm having some doubts about deciding which solution can suit better my needs. I was looking for a stability within the mV magnitude.
My first focus was on the Wien Bridge Oscillator, using diodes as Amplitude Gain Control conductors[fig2], but i'm afraid its forward voltage drift with temperature and current could compromise significantly the output signal. I also found Wien Bridges Oscillators using a FET[fig1]. And lastly i looked at Phase Shifts Oscillators which looked as good option as only element that has a significant drift is the Amplifier and i could minimize it using a low drift OpAmp.
Can someone please help me choosing the solution which has a higher voltage stability or advice me if there is better solutions with similar complexity.
Thank you in advance.