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  • ADS8638: Does EPAD need to be grounded?

    Resolved
    Part Number: ADS8638 Tool/software: Hello, I'm using this part ADS8638SRGERin a design. I couldn't find anything regarding the exposed pad (EPAD). Does it need to be grounded or left floating? Thanks
    • Resolved
    • Answered

  • ADS8638: ADS8638SRGER lifecycle

    Resolved
    Part Number: ADS8638 Hi, We are in the process of replacing an ADC in a design which has gone EOL. The TI ADS8638SRGER is an excellent fit, but I was wondering if it is recommended for new designs, or if there is a planned end of life date for this part…
    • Resolved

  • ADS8638: ADS8638 External reference decoupling cap value

    TI Thinks Resolved
    Part Number: ADS8638 Hello~ I have a question about using the ADS8638. datasheet Page 24. in text => "Whether it is an internal or external reference, be sure to decouple the REF terminal to REFGND with a 10µF capacitor. Place the capacitor close to the…
    • Answered

  • ADS8638: Best voltage for HVSS and HVDD for long term use

    Resolved
    Part Number: ADS8638 Other Parts Discussed in Thread: TLV4171 Hi, I am using an ADS8638 in my design to read +/-12V analog signal, it's working good with HVSS = -15V and HVDD = +15V. However I could save some money and space by using a +/-12V power supply…
    • Resolved

  • ADS8638: ADS8638 SPI communication problem

    Part Number: ADS8638 HI! I have an issue with ADS8638 thru SPI communication Once I read the register, The IC can't send anything. is there any problem with schematic or communication control? Here I attached my schematic. Thanks
    • Answered

  • ADS8638: MUX and Supply voltages at 0-10v working scenario

    Resolved
    Part Number: ADS8638 Other Parts Discussed in Thread: ADS8668 Hi, I am using ADS8638, 8 channel ADC for inputs of 0-10V. I am giving 3.3V as supply (DVDD & AVDD) and 10V for HVDD. Is it necessary to give HVSS mux voltage as -10V? Can I give 0V? How is…
    • Resolved
    • Answered

  • ADS8638: how to read thermistor configured with bypass capacitor

    Resolved
    Part Number: ADS8638 In page 64 of the DS, the section named "DRIVING ANALOG SIGNAL INPUT WITHOUT AN OPERATIONAL AMPLIFIER" describes the use of a bypass capacitor and the sampling rate for determining the output impedance of the circuit. Can you explain…
    • Resolved
    • Answered

  • ADS7138-Q1: About voltage monitor of Negative power supply's voltage

    Resolved
    Part Number: ADS7138-Q1 Other Parts Discussed in Thread: ADS8638 , ADS8668 , ADS8665 Tool/software: Hello experts, Can it possible to monitor of the negative power supply's voltage in ADS7138-Q1? We want to monitor of -3.3V. Best Regards, Toru Kimura…
    • Resolved

  • Compiler/ADS8638: Compiler/ADS8638: Aurdino based Itsybitsy m4 express interfacing with AD8638 chip.

    Part Number: ADS8638 Tool/software: TI C/C++ Compiler Hello Dale, Sorry for delay in response. this issue continuation of https://e2e.ti.com/support/data-converters/f/73/t/893830 -As per the SPI MOSI getting Spikes at the end of the 8-bit frame. 1. Is…

  • ADS8638: ADS8638 SPI Signals termination

    TI Thinks Resolved
    Part Number: ADS8638 Hi, I am using ADS8638 in my design. I would like to know what termination resistor value need to be placed in the SPI lines and how to calculate the termination resistor values for the SPI lines. In Datasheet, it is mentioned 50Ω…

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