Other Parts Discussed in Thread: OPA828, TINA-TI
Our design uses OPA544T.
We have simulated the design using the model available. PFA .TSC file, FYR.
Waveforms from the prototypes Testing:
Vout with Oscilloscope set to DC mode:
Vout with Oscilloscope set in AC mode:
We could see that the output waveform is distorted and not sine wave + DC offset. We are able to get the sinewave at the output upto 380KHz.
Pl let us know what is causing the output distortion and suggestions for improving the circuit.