Forum Post: Weird behavior in current monitor circuit
My application involves controlling fans to keep device temps within specs. I need to monitor high side current in this application, ie, the current powering the fans. Current span is 10mA to 500mA....
View ArticleForum Post: RE: Weird behavior in current monitor circuit
Hi, I suspect there can be several issues you are facing with the circuit. If you are convinced to use an opamp and build your own current monitor, the opamp applications engineers can help you with...
View ArticleForum Post: RE: Weird behavior in current monitor circuit
Ed, Thank you. I've sent you an email.
View ArticleForum Post: photodiode transimpedance amplifier max current and bandwidth
Hello, I would like to design a transimpedance amplifier for a photodiode and although I have been studying the theory behind it for a while now, I am still trying to understand some concepts. The aim...
View ArticleForum Post: RE: ISO124 Gain error
Hello ! Please explain me, how to estimate gain error, based upon datasheet, if ambient temperature is 60 degrees. What includes a gain error? In fact, the following characteristics: Power supply: +...
View ArticleForum Post: Something wrong in the ADS1158 datasheet
On page 42, Figure 54 of the ADS1158 DS
View ArticleForum Post: RE: Something wrong in the ADS1158 datasheet
Hi user4209155, Thanks for pointing that out! I believe the ADS1258 datasheet had it correct, but when the ADS1158 was released we had also come out with the higher performance REF50xx. The figure was...
View ArticleForum Post: Fully differential amplifier with single supply but differential...
Hi there, I just tumbled over a bunch of application note, which where really helpfull but didn't really answered my question. Here it comes: I have an audio codec which outputs a differential analog...
View ArticleForum Post: What does the input offset voltage mean
Hi everybody, sorry that I have to ask t his, but I just couldn't find any answer for this question. My problem with the value of the "Input offset voltage" in all the OPA datasheets is that I can't...
View ArticleForum Post: RE: What does the input offset voltage mean
Hi, Lennart, This app note describes input offset voltage. You can read it HERE . -d2
View ArticleForum Post: RE: Fully differential amplifier with single supply but...
Hi, Lennart, As long as the input common-mode range of the op amp is within your audio codec's common mode output voltage, and you have enough signal swing, you should be fine. Check out the data sheet...
View ArticleForum Post: RE: Fully differential amplifier with single supply but...
Hi Don, thanks for your help. Would I have to connect both V+ and V- to 5V or as I am used to it from regular OPA to V+=5V and V-=GND? Regards, Lennart
View ArticleForum Post: OPA313 performance degradation at 1.6V Vs
Hello Team, I have query on OPA313 performance degradation at 1.6V supply. Recommended supply is 1.8V to 5.5V as perdatasheet, however supply available in one of my customer design is only 1.65V &...
View ArticleForum Post: 0-10V to 4-20mA interface, request industry standard suggestions
Hello everyone. I have not been able to find any TI documents to help with this question. If there are some available, please advise, thanks. I am requesting XTR110 industry standard suggestions for a...
View ArticleForum Post: RE: 0-10V to 4-20mA interface, request industry standard suggestions
Hello, I've provided answers to your questions below: Clamp diode to protect A1 from -.5V at pin 4: -consider the BAT54 Schottkey diode. A suitable external mosfet that is not in a to-92 package (I can...
View ArticleForum Post: Inquiry regarding settling time (ts) on LMV932-N
Hello, all Now we have one inquiry regarding settling time (ts) on LMV932-N from our customer. Please refer to the item below, and feedback us with your comment. When referring "11.3.16 Settling Time"...
View ArticleForum Post: INA2128 or INA2134?
Hello, I have a need to bring a signal into my circuit whilst preserving its fidelity as best as possible. It isn't audio, but it has the same sort of requirements as the very best audio might require,...
View ArticleForum Post: Can I use AFE with photodiode?
Hello, I found LMP91050 when I looking for the amplifier for photodiode. I don't know about the LMP91050 details. Who can tell me whether can I use this IC with photodiode? Thanks in advance, Cheol Lim
View ArticleForum Post: What is the max output current of the OPA1664 with a +-12v supply
I'm trying to determine the max output current of the OPA1664 with a +-12v supply. The data sheet refers you to the typical characteristics graph. Operating conditions are VS+-15V, Rl=2k unless...
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