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ADS1194
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  • Forum Post: Is it my schematic ok? I'm using the ADS1194

    Pascal Hernandez
    Hello Community, I'm an university student (UAG) from Mexico and I think I finished my schematic of the system I'm doing. My questions are mostly to the ADS1194. I would like to use the single supply configuration and I saw in the datasheet (page 64) that DVDD must be equal to +1.8 V and AVDD...
    on Jun 1, 2011

  • Forum Post: Help ADS1194

    Luis Ribeiro
    Hello, I'm using a ADS1194 for a ECG framework, but there's something I don´t really understand. I can only have a 3 lead equipment (I,II,III), I don´t want a clinical ECG, only for a simple monitoring. Do I need a forth because of the RLD? Thanks
    on Jun 1, 2011

  • Wiki Page: Supply Measurements (MVDDP, MVDDN)

    Tom Hendrick
    Q - How do I use the internal voltage measurement tests? A - Set the desired channel(s) in CHnSET and set the gain = 1. For the internal voltage reading on channels 1, 2 and 5-8 the conversion result will be equal to the difference of (AVDD - AVSS)/2. For channels 3 and 4, it is DVDD/4. For a 5V...
    on Jun 25, 2011

  • Forum Post: Re: Is it my schematic ok? I'm using the ADS1194

    Pascal Hernandez
    Hello Tom, I'm having some problems to get some data from the ADS1194, does it need the DRDY port to be connected to an interrupt port from the uC in order to catch when is in clear state? Best Regards, Pascal.
    on Oct 4, 2011

  • Forum Post: Re: Is it my schematic ok? I'm using the ADS1194

    Pascal Hernandez
    Hi Tom, Ok! I'm sending all the configuration through SPI and when I'm trying to catch the clear pulse of DRDY I can't get it because I have it with a normal GPIO, I will change my hardware and I'll try again. Best Regards, Pascal.
    on Oct 4, 2011

  • Forum Post: ADS1194, Schematic review and comm issues

    Pascal Hernandez
    Hi Tom, After a long time I modified the PCB, now I am able to see the data coming from the device but I still have some problems with synchronization I think... After seeing the data through the logic analyzer, I can see that everything is ok but when I try to catch this data I get everything...
    on Nov 13, 2011

  • Forum Post: Re: ADS1194, Schematic review and comm issues

    Pascal Hernandez
    Hi Tom, I still have the same results, any other idea? I know that I'm over the minimum limit of the SPI timing but is it correct my baud rate configuration? Anyway I attach the modified code and the Logic Analyzer image. Best Regards, Pascal. (Please visit the site to view...
    on Nov 15, 2011

  • Forum Post: Re: ADS1194, Schematic review and comm issues

    Pascal Hernandez
    Hi Tom, Sorry for my delay, I was a little busy. Why did you added this 2 lines after ADS1194_init()? Did you tested the code? I still have some problems getting the information. It looks like is out of phase because if I start debugging it from the beginning (doing steps over) I get all the information...
    on Nov 27, 2011

  • Forum Post: Re: ADS1194, Schematic review and comm issues

    Pascal Hernandez
    Hello Tom! Finally I found the problem and it was a timing issue, now I can see the ECG signal :) (Please visit the site to view this file) I'm leaving here a working driver for the ADS1194 using the MSP430FG4618, I hope someone will be happy to see it in the future :) By the way I answered...
    on Dec 7, 2011

  • Forum Post: Single-Shot Convertion using ADS1194

    Pascal Hernandez
    Hello I'm trying to evaluate the Single Shot convertion mode of the ADS1194 using the MSP430FG4618. After reading page 31 I realized that there isn't much information about this topic so I'm wonder if you guys have a flow chart of how to use it or if you could tell me what am I doing wrong...
    on Dec 29, 2011

  • Forum Post: Re: Single-Shot Convertion using ADS1194

    Tom Hendrick
    Hi Pascal, For the ADS1194, you need to send the SDATAC command during your initialization to ensure you program the registers correctly. It looks like you are doing this just prior to entering the writes to the configuration registers. The code snippet that programs CONFIG 1,2,3 is only writing to...
    on Dec 30, 2011

  • Forum Post: to get lead I from ADS1194 using just 2 electrodes

    Abhinav Abhinav
    Dear Experts, I have been able to make a 2 electrode system using discrete components to get a clean lead1 ECG. To reduce the size and power consumption, I was thinking on using ADS1194 to design an ECG patch using just 2 electrodes to get lead I for rhythm detection. We intend to make a CR2032 powered...
    on Dec 30, 2011

  • Wiki Page: Frequently Asked ADS1298 and ADS1198 Questions

    Tony Calabria
    Frequently Asked Questions on the ADS129x and ADS119x devices: [[design_notes:ADS129xR Respiration Design|ADS129xR Respiration Front End Design]] [[design_notes:ADS1x9xECG-FE|ADS1x9xECG-FE questions - ADS1192, ADS1292, and ADS1292R]] [[design_notes:The ECG and EEG Frequency range|The ECG and...
    on Jan 3, 2013

  • Wiki Page: Precision Data Converter Design Notes

    Kevin Duke
    The Signal - Bruce Trump's BLOG Analog Wire - The Analog Signal Chain Blog Click on this link for answers to questions about ADCPro, the ADS1298 and more... Frequently Asked Questions (FAQs) There is more here than meets the eye! Expand the links to the left or click on the links below...
    on Jan 18, 2013

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