Other Parts Discussed in Thread: TINA-TI, , OPA863, OPA810
I'm looking for oscillator solution that meets following requirement.
freq: 400kHz ~ 1MHz (no adjustable requirement)
I created wein bridge in TINA-TI referring below e2e.
The design challenge is difficult to meet Vout_pp: 3~5V even if using dual channel opamp since startup voltage is higher than stable voltage.
if we use two single opamp and control the second opamp powerup sequence, it seems we can meet Vout_pp.
Anyway, question is
- I pick up TLV3541 but are there any recommended opamp?
- please modify the schematic if there are anything wrong?
- Are there any way to meet Vout_pp 3~5V with dual opamp?