Kai's points are good - you may consider using a higher bandwidth device and see if the results improve. With more bandwidth, you'll have better performance at 300kHz.
A device like the OPA353 or something from our high speed product family:…
Part Number: INA111 Other Parts Discussed in Thread: OPA353 Hi E2E forum I have a question
We are students in Gachon University, South Korea.i introduce our experiment. It is a vibration experiment using ultrosound piezo actuator which can increase the…
Other Parts Discussed in Thread: OPA2353 , OPA353 Hello, I'm using 2 OPA353 for a 4th order filter. This op amp range from 2.7 to 5.5 for a voltage source. I also have a amplifier. Can I connect a same voltage source for both op amps? Let's say a 5V source…
Thank you so much! Excellent answer, the OPA353 looks like a good op amp. Another question, this op amp range from 2.7 to 5.5 for a voltage source. Can I connect a same voltage source for both? Let's say a 5V source for the two OPA353? Or a 15V for both…
Max,
What do you use to measure OPA376/OPA377 output voltage? Have you placed a scope at the output to see whether it is stable. With a capacitive load greater than 1uF, OPA376/OPA377 like most op amps is likely oscillating; very few op amps can drive…
Hi Darren,
Considering the values you declare for the capacitor and resistor, it seems to me you are trying to implement an analog passive filter. In this case, you will need two stages to achieve a second order filter. For a HP filter with such a low…
Pablo,
Since all the input and output range specifications are referenced with respect to supply voltage, your conclusions about the input common-mode voltage range of OPA1642 and OPA227 are correct. However, when it comes to OPA227, you overlooked the…
Thank you.
Yes, I am using the OPA735. I think the period should be more like 0.62us? However, the auto-zero seems to be a likely source. It would also explain why the spikes don't appear when the buffer output is 0V, since discharging from 0V to 0V wouldn…