Forum Post: RE: ADS1299: Ads1299 Trying to take data from a single electrode
Hi Winston, This sounds like a software issue, not the ADS1299 . Is there something that you would like help with in regards to the ADS1299 ?
View ArticleForum Post: RE: ADS1261EVM: AC excitation and connector J5
Thanks! It worked. If I wanted to shrink the Full Scale span to get more counts out of the ADC (I have a small input span), I could just change the reference voltages that go into AIN0 and AIN1,...
View ArticleForum Post: RE: ADS1278-HT: ADS1278-HT and ADS1278-EP
The -EP and -HT device are derivatives of the commercial version with extended temperature ranges for characterization. It is not uncommon for the die to be changed to handle the high temperature....
View ArticleForum Post: RE: AFE4490: The PPG signal seems to be inverted
HI Cesar, Please refer to the link below for response. e2e.ti.com/.../600556
View ArticleForum Post: RE: ADS1261EVM: AC excitation and connector J5
Hi Andrew, You certainly can adjust the reference voltage... Sometimes excitation voltages greater than 5V are applied to the load cell to increase the output voltage; however when using larger...
View ArticleForum Post: RE: ADS1148: Unstable dataout value in case of input=±0.1mV
Hello Matsumoto-san, Thank you for your post! Is the customer using a unipolar or bipolar supply configuration? What is the gain? Is any calibration being performed before the measurement? How much...
View ArticleForum Post: RE: ADS1256: Setting up the SPI Logic Analyzer for ADS1256
Hi Khoi, If you can, try to avoid any kind of "printf()" or print to terminal command within each read loop. Typically, these types of operations are processor intensive and might prevent you from...
View ArticleForum Post: RE: ADS1298: ECG wave problem
Hello Manisha, I can't find R15, R16 and C12 on the schematic since it is blurry. When you say offset do you mean that the voltage level is changing or that the measurement stops like in the second...
View ArticleForum Post: RE: ADS54J42: ADS54J42 temperature issue
For better support, we are in the middle of engaging the best person to support this device. In the mean time, please confirm the followings: When the link fails, what is the state of SYNC signal?...
View ArticleForum Post: RE: ADS1299: Problem setting the Bias Control Registers with the...
Hi Stephane, Thanks for pointing this out. It may in fact be a bug in the software. If you have clicked the toggle buttons for the individual BIAS_SENSx bits and you don't see the settings reflected in...
View ArticleForum Post: RE: ADS1299: Ads1299 Trying to take data from a single electrode
Hi, I'm trying to capture alpha and beta waves but I do not know if I'm really capturing those waves with ads1299 or I'm just seeing noise. I already applied the filters of the ads1299 software to the...
View ArticleForum Post: RE: ADS1299: Ads1299 Trying to take data from a single electrode
Try applying a known input signal like a 100mV, 1kHz sine wave to the input to make sure that the ADS1299 is configured correctly. Try adjusting the gain settings so that you get a more substantial...
View ArticleForum Post: DAC81408: Reference filter recommendations in datasheet vs EVM
Part Number: DAC81408 The datasheet says to connect a 330pF cap from REFCMP to REFGND, but the EVM connects 1000pF. Is it safe to assume the datasheet means at least 330pF? The datasheet also says to...
View ArticleForum Post: ADS1115: Question about voltage divider
Part Number: ADS1115 Hi, I am a student and I am trying to use a precision potentiometer for angle measurement in a 0-5 v range, I need a 0.01° accuracy for the angle measurement. I have looked through...
View ArticleForum Post: RE: ADS1256: Setting up the SPI Logic Analyzer for ADS1256
Thank you very much for your help. I was able to obtain 1kHz DRATE and fixed alot of problem between the Arduino code and ESP32. However, could you help me take a glance at the following logic analyzer...
View ArticleForum Post: RE: ADC128S102: ADC128S102
Hi Kenneth! How is the ADC128S102 testing going? Have you resolved the issues?
View ArticleForum Post: RE: ADC128S102: How to Avoid or rectify effect of signal coming...
Hi Priyanka! Any feedback here? As Cynthia pointed out, layout is often an issue. Are you using any sort of drive amplifier ahead of the ADC128S102 ?
View ArticleForum Post: RE: ADS1299: Problem setting the Bias Control Registers with the...
Thanks, Stephane! I'm glad to hear that works. Regards,
View ArticleForum Post: RE: ADS1256: Setting up the SPI Logic Analyzer for ADS1256
Hi Khoi, You should add a delay after /CS goes low (see "t3" in the datasheet), before the first SCLK rising edge. Without this delay the ADS1256 may not register the first SCLK edge and communication...
View ArticleForum Post: RE: ADS1115: Question about voltage divider
Bryan, It's likely that the ADS1115 is close to what you want. To be sure, I think it would be best to go through what you have in mind for your system. If your measurement is a voltage that goes from...
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