Joseph,
Yes, the op-amp was completely removed. So was the 27k, and connections wired directly to output and output gnd. Functionally it works fine, and the buck-boost starts fine. Also at elevated temperatures.
I found the OPA2990 in the same package…
Hi Yixing,
So 1 PIR will need 2 OPA, right? Sorry I am not familiar with PIR solution.
If you want 2 PIR, I think MSPFR2355 could be a better option.
But I will discuss with my colleague to see if there is any better solution.
Regards,
Zoey
Hi Richard,
I see, so if the device is used in FPWM mode and the average output current decreases below the ripple current divided by 2, then I suppose we are entering a zone where inductor current becomes negative in CCM, and so, you will have a loss…
Hi Alex,
If you check the datasheet, you will find that PA25 can only be used as the positive input of OPA0. And the positive input of OPA1 can only be PA18.
The input and output pins of OPA are analog and have been determined, so they cannot be modified…
Hi Clemens,
I add a negative power to TLV9302， and compare the result to add a positive 1.25V to the +port of TLV9302, it seems same. We can see in the below, the wave of the Vout and Vout1 are the same. In our device library, there are TLV9061 and…
Hi Diego,
For VOD0, you are correct in that the output voltage varies from approximately 400 to 1000 mVp-p. The range is approximate, so the minimum may be slightly above 400 and the maximum is usually above 1000. From what I simulated, the difference…
Part Number: IVC102 Tool/software: Hello, I was working with this integrator IC, but the injection current is what is hampering my output, so I was wondering if there is any other IC's available similar to this IC without the injection current? What…
Hey Andreas,
This is likely happening due to the circuit configuration.
Remember, a CMOS amp like the TLV9302 will have very low IIB which will further decrease as temp lowers.
Since you have a diode from the OPA output to the RC filter, there is no…
Hi Ron,
Thanks for comments. We expect that we can get 50pA = 0V and 160pA = 3.3V in the beginning. (in all temp, the current is within 50pA-160pA)
Can we enlarge the 1Mohm that we can get broader OPA Vos spec limitation?
Ron Michallick said: Your signal…
Hi Sebastien,
I know it's been a while, we did not forget about this! I've been working for the past few weeks to try to get this system working. I think I have audio coming through now, but I have been having trouble getting our digital audio test equipment…
