i have a problem to get ecg signals with ina333.
Hi,I want to get ecg signals with ina333. The circuit is attached.when i used other amplifiers, like ad620, ad625,there was no problems to get signals on the circuit.but when i use this amplifiers, the...
View ArticleINA282 for motor current sensing
Hi all,I want to sense the current that is drawn from two motors that is being driven by a DRV8432 H bridge. I am not interested in the instantaneous current draw and just want to measure the average...
View ArticleUsing of signal conditioner in a piezoelectric sensor application
Dear Expert!I have some questions regarding using of signal conditioner in a piezoelectric sensor application. In TI application report (SLOA033A) wrote that "voltage mode amplification is used when...
View ArticleTLV2475 alternative
Dear sirs,We are looking for an alternative to TLV2475 due to the difficulty we have in Spain to obtain it. We would like to know if there is any TI amplifier with similar characteristics. It would be...
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Switched Integrator ACF2101 spectrum analyzer
Hello,I had a few questions about the spectrum I'm measuring at the output of my buffer circuit with the switched integrator, an ACF2101. The buffer amplifier is the...
View ArticleAFE031 programming
I’m trying to program the AFE031 Analog Frontend with a F28069 Microcontroller. Unfortunately there is some information missing about SPI programming in the AFE031 datasheet.Maybe somebody has already...
View ArticlePT100 - Temperature Controller
Hello,I am currently working with the project named "temperature controller" with PT100 sensor. I want to know the basic designing concepts regarding the amplification stage.The final aim is to...
View ArticleVos Temperature drift, OPA2317
Hello Team,We are currently using a LTC2055 for an application which is about to go to High Volume and would like to change it for a cheaper op-amp. Vos drift with temperature is critical to our...
View ArticlePGA309 controlled trough a microcontroler
In our system we are using the PGA309 frontend anr we control it trough a microcontroler with the One-wire Interface.This all works fine, till we enable bit15 register 4 and then disable it again and...
View ArticlePGA280 Reset timing
I have a question regarding the TI PGA280 which I cannot answer from the datasheet.Could you help in determining the time it takes for the PGA280 to reset when issueing a software reset to the chip?...
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Difference (in terms of ESD protection) between LMV824PWR from TI and...
Hello,I used to employ the LMV824PWR from TI on the following Multiple Feedback Bandpass filter : NB : the other 3 gates of the circuit are used as follower.As the LMV824PWR from TI is now obsolete, I...
View ArticleOPA1632 Offset température drift
Hello,I Will use an OPA1632 on as input amplifier for an analog to digital converter board. OPA1632 offset temperature drift is +/-5µV/°C. Is this drift stable on a chip ? Target is to calibrate my...
View ArticleTLC27M9I
Hello,What isthis chipanalog?I ordereditin China.I gota fake.label withchipis erased.it's writtenon a chip:29MADVFB4TLC27M9IinRussiathis chipis hard to find.whichreplaceadvise?Thank you.
View Articlespiking noise of INA333
Dear specialists.My custmer is using INA333.But some devices of the output include spiking noises.Please teach me what kind of reason can be considered?Could you see a attached file. Best...
View ArticleSequencing Requirement on PGA280
Hi,Is there any sequencing requirement on PGA280. Presently we have designed a circuit in which VSP = +15V is used for generating VSN = -15V. The analog supply also comes with a delay after VSP. Will...
View ArticleProblem with INA333 and OPA333 testing circuit
(Please visit the site to view this file)Hello TI,I've just got some INA333 and OPA333 samples from TI.I made a circuit to test this, but I have a problem. I can not run signal anlyzer to see the bode...
View ArticleRE: IVC102 postive/negative output
Javier,I am a modeling engineer in the WEBECH Design Center.Unfortunately I am not familiar enough with the part to know if the problems are due to the setup or the model.I will move your inquiry to...
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IVC102 postive/negative output
Hello all,I am working in a photodetector amplifier design in order to measure currents from around 1pA to 10pA. I want to use the IVC102U as a good solution to improve the SNR.I am simulating using...
View Article100 V across input of lmp7721?
Hello,I note a circuit example in lmp771 spec sheet which shows the op amp connected across an ion chamber which also has 100 Volts bias across it.Can you please explain how this is possible? I am...
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OPA277 Output is higher than expected
Hi all,for my project am using OPA277 as a unity gain inverting amplifier with +/-12 supply, my problem is am getting 1.556V at output when my input is only -0.278V, Please any one help me to solve...
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