I am using a extent range. A external amplier is connected to Exfoh.
output voltage is a Sine wave when Fin is a constant. The frequence is 10K Hz.
VREF is confirm as 5V
The supplies is +/-15V.
How to solve the problem？
Sorry for the delay. This was in the HS DAC community and didn't show up in our issue list. I am moving this to the Precision ADC community where someone can answer your question.
I will move this to Other Products where someone could help you.
I may need additional information. Could you provide a simple schematic of your design? Also what external amplifier did you use after ExFOH? Where is the MEASVHx connected? What mode are you in? I am suspecting the external amplifier is responsible for the ringing and its relation to the active loop of the circuit but I need a clearer picture of your circuit.
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