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  • ADS7854: Issue when reading configuration data

    TI Thinks Resolved
    Part Number: ADS7854 Hello, I'm using the ADS7854 with single SDO link, and with 32CLK configuration. After performing the configuration, when I read back the configuration register CFR, bit R13 and R12 are both '0' when expected to be '1'. Others bits…
    • Answered

  • ADS7854: Bandwidth

    Resolved
    Part Number: ADS7854 Team, We are looking at using ADS7854IPWR . BW of the ADC needed must be above 100kHz. What is the BW of this ADC? Thanks, Juan.
    • Resolved
    • Answered

  • ADS7854: Question about ADS7854

    Resolved
    Part Number: ADS7854 Other Parts Discussed in Thread: THS4522 Hello： The customer selected ti's ads7854, which is configured with internal Ref. the actual measured value of this ref is not accurate. Where can I check it? The current problem is that…
    • Resolved

  • ADS7854: What will happen if I write 1 to a default 0 Configuration Register of an ADC?

    TI Thinks Resolved
    Part Number: ADS7854 Hi all, I am designing a ADC circuit using ADS7854 and utilizing its fully differential input configurations. From the datasheet, there is a 16 bits Configuration Register (CFR) (page 34). I am required to configured the CFR to enable…

  • ADS7854: Rref Resistors

    Part Number: ADS7854 Hi Experts, could you clarify the following: In 11.1 the layout recommendation shows small Rref resistors between REFIO pin and Cref. Would you recommend those resistors regardless of whether the customer is using the internal or…

  • ADS7854: Can I run the ADS7854 with AVDD = 3.3V?

    TI Thinks Resolved
    Part Number: ADS7854 I'm designing a battery operated medical device and I would like to run the ADS7854 with AVDD = DVDD = 3.3V and an external reference of 2.5V on pins REFIO_A / B. The datasheet specs AVDD at 4.5V min. Initial testing all looks good…
    • Answered

  • ADS7854: Vocm of the input driver THS4552 from ADS7854's REFIO_X

    Resolved
    Part Number: ADS7854 Other Parts Discussed in Thread: THS4552 Hi all Would you mind if we ask ADS7854? Our customer will use ADS7854 to detect the motor current. They use THS4552, and try to connect REFIO_X to THS4552's Vocm via voltage follower ampilifier…
    • Resolved
    • Answered

  • ADS7854: INTERFACE MODE and Data Write Operation

    Resolved
    Part Number: ADS7854 Hi all Would you mind if we ask ADS7854? <Question1> When INTERFACE MODE changes from 32-CLK, dual-SDO mode (default) to 16-CLK, dual-SDO mode, after changing, Frame (F+1) will be 16-CLK, dual-SDO mode, right? <Question2> In case…
    • Resolved
    • Answered

  • ADS7854 Problem

    Resolved
    Other Parts Discussed in Thread: ADS7853 , ADS7854 I am trying to use ADS7854 or ADS7853 for data adquisition but it doesn't seems to work. It doesn't answer anything even when I try to write in the config register. I attach an image of the command. Any…
    • Resolved

  • ADS8881: Specs for Sub-sampling

    TI Thinks Resolved
    Part Number: ADS8881 Other Parts Discussed in Thread: ADS8471 , ADS7279 , ADS7854 , ADS7042 , ADC14L020 , ADS4142 Hi, I am thinking of using a ~1MSPS ADC, like ADS8881, to sub-sample a bandlimited signal around 10 MHz. The mentioned part specifies a -3dB bandwidth…

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