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  • ADS7881: Driving ADS7881 by high-speed optocouplers

    TI Thinks Resolved
    Part Number: ADS7881 Hi, Since isolation of 2500Vrms is needed between the digital module and the analog module , we use high-speed optocouplers - ACSL-6400. The optocoupler drive the A/D Digital inputs and the optocoupler "Output Rise Time" is 35ns…

  • ADS7881: Input/Output delay information for ADC to FPGA interface

    TI Thinks Resolved
    Part Number: ADS7881 Hello, I am interfacing ADS7881 to my FPGA. Sampling frequency = 2MHz. I am writing SDC timing commands for Timing analysis for my FPGA design and I need the Input and Output delay values for all the pins of ADS7881. I didnt find…
    • Answered

  • Interfacing ADS7881 with OMAP-L138 EVM

    Resolved
    Other Parts Discussed in Thread: ADS7881 , OMAP-L138 , ADS7881EVM Hi, ADS7881 offers parallel interface, I am wondering if it's possible to interface this data converter with OMAP-L138 EVM using UPP ? What other options are available to interface this device…
    • Resolved
    • Answered

  • Scalling ADS7881 Output

    Resolved
    Other Parts Discussed in Thread: ADS7881 Hi Tom, I am trying to scale ADS7881 outout but I couldn't manage to do it. I inputed 1.25 VDC to adjust R25 to mid scale but the code axis keep moving as I move R25. However, I adjusted R25 to set the DC…
    • Resolved

  • reading from ADS7881

    Other Parts Discussed in Thread: ADS7881 5226.ADS7881readproblem.pdf We have an ADS7881 converter that cycles continuously. We build up a voltage on a capacitor, which eventually trips a comparator, which causes CONST! to go low. When BUSY goes high,…
    • Answered

  • ADS7881 timing question

    Resolved
    Other Parts Discussed in Thread: ADS7881 , AM3703 Hello- Regarding the ADS7881 12b SAR. My cusotmer is trying to use it between a contact imagesensor and a AM3703 based SoM. His question: "Is it safe to assume that the voltage that gets converted to…
    • Resolved
    • ads7881 timing.docx
    • Answered

  • ADS7881: Readout of the digitized data

    Resolved
    Other Parts Discussed in Thread: ADS7881 The ADS7881 Specification, regarding the readout of the digitized data: The time for the DATA to be enabled onto the bus (td6) is 25ns maximum. The time for the DATA to decay from a disable (READ deasserts) is also…
    • Resolved

  • ADS7881 improved code for real-time application

    Other Parts Discussed in Thread: ADS7881 , ADS7881EVM Hi, I have one code example which I took from the discussion page given below. http://e2e.ti.com/support/data_converters/precision_data_converters/f/73/p/66255/289216.aspx?PageIndex=2 I don't understand…
    • Answered

  • ESD Sensitivity ratings for the ADS7881

    Resolved
    Looking for ESD sensitivity data for the ADS7881IPFB. can't locate it on the web. thanks, Michelle
    • Resolved

  • Interfacing the ADS7881 to TMS320C6713 DSP

    Other Parts Discussed in Thread: ADS7881 , ADS7881EVM Hi, I went through the document and sample code given at the following page to interface ADS7881 with C6713 using PING PONG scheme. http://focus.ti.com/dsp/docs/litabsmultiplefilelist.tsp?sectionId=3&tabId…

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