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  • ADS8422: COMMOUT is 0.15 volts when REFOUT is 4.1V

    Resolved
    Part Number: ADS8422 Other Parts Discussed in Thread: THS4131 , ADS8412 We are in a bit of a bind. We just produced ten boards that each use 8 ADS8422, four on the top layer and four on the bottom. The problem is that the four ADS devices on the top layer…
    • Resolved

  • RE: ADS8422: Operation with the ADC

    Hello Mohd, Yes, the THS4131 will require a +/-5V supply. Since your input voltage is +/-3Vpp with a common mode voltage of 1.65V, I suggest using the OPA2210 for the input buffers. Below is a more complete circuit for the amplifier front-end. Regards…
    • Answered

  • ADS8422: Circuit of input stage for ADS8422

    Resolved
    Part Number: ADS8422 Other Parts Discussed in Thread: THS4131 , , THS4551 , ADS9224R Hello, I considering AD conversion circuit that circuit is used ADS8422 and THS4131. I considering this circuit based on figure 29 of ADS8422 data sheet. Input voltage range…
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  • ADS8422: Supporting documentation for Functional Safety

    Resolved
    Part Number: ADS8422 Hello TI experts, We are planning to use the ADS8422 (specifically ADS8422IBPFBT) in a Functional Safety (FS) application. I know the device isn't listed under TI's FS Capable, FS Quality Managed, or FS Compliant classifications,…
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    • Answered

  • ADS8422: Polarity of AD conversion data

    Resolved
    Part Number: ADS8422 Other Parts Discussed in Thread: THS4131 , Hello, I considering AD conversion circuit that circuit is used ADS8422 and THS4131. I considering this circuit based on figure 29 of ADS8422 data sheet. THS4131 negative output is connected…
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    • Answered

  • ADS8422: Questions related power supply

    Resolved
    Part Number: ADS8422 Hello, I considering AD conversion circuit that circuit is used ADS8422. I have two questions related power supply for ADS8422. 1. I want to know how the + VAREG powered regulator works inside the ADS8422. 2. I want to check the existence…
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  • RE: ADS8422: Reference voltage for setting the input common mode voltage at 1.5V

    Resolved
    Hello Mohd, Anytime an input amplifier is powered from supply voltages greater than the ADC supplies, in a fault condition, the output can possibly go to, or near, the supply rail. In the case of +/-5V supplies, if the amplifier goes to 5V, then you are…
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  • ADS8422: ADS8422 - how to tie together 32 BUSY signals (pin 36)

    Resolved
    Part Number: ADS8422 Other Parts Discussed in Thread: SN74LVC1G06 , I need to connect together 32 ADS84221 (pin 36 BUSY). I would like to have the exact specifications of this output. These 32 pins will be connected together and connected to one pin of…
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    • Answered

  • ADS8422: Alternative

    Resolved
    Part Number: ADS8422 Hi sir, The part ADS8422IPFBT is listed as obsolete on various distributer portals like Mouser, Digikey, Octopart, etc. I want to know the alternate part for the same. We would appreciate it if the alternate part is of exact form…
    • Resolved

  • ADS8422: Anti aliasing filter design for differential input

    TI Thinks Resolved
    Part Number: ADS8422 Hi Team, My customer want to design 1st low pass filter as anti-aliasing for differential input of ADS8422. Do you have any tool or software to design such the filter or do you have any document describing how to design? I'm not familiar…

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