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  • ADS7871: ADS7871 suddenly fails to output DOUT

    TI Thinks Resolved
    Part Number: ADS7871 Hi team， A customer doese not have company email so I help him to post this issue. this issue is ADS7871 suddenly fails to output DOUT while in use. Occasionally, ADC values could not be sent to MCU. Phenomenon: 1) Normal progression…

  • Compiler/ADS7871: ADS7871

    TI Thinks Resolved
    Part Number: ADS7871 Tool/software: TI C/C++ Compiler Dear Sir, I am using ADS7871 spi ADC interface with dspic33fj128mc706a controller. we can able to set register 7 . but we con't read the device id. Can you send the sample code for how to read the…

  • ADS7871: Not able to talk with ADS7871

    TI Thinks Resolved
    Part Number: ADS7871 I'm having trouble setting up this ADC through the SPI bus using an Arduino. I tried to do some basic read commands, but I get nothing back from the chip's Dout. Are there certain registers that need to be set up first? I…
    • Answered

  • ADS7871: Frequent Occurrence of "PGA Valid 5" Bit Being Set under Single-Ended Input configuration.

    Resolved
    Part Number: ADS7871 Hi, I would like to seek some clarifications on the problem that i’m having with ADS7871. I noticed that for few chips that i’m working on, there are some weird issues that seems odd. First of all, i’ll like to point out that these…
    • Resolved
    • Answered

  • ADS7871 External Reference

    Resolved
    Is a 3.1V external reference voltage available for Vdd = 3.3V? In the datasheet in page 4, it says that the maximum input for the reference buffer is Vdd-0.2. Does this means that I can use an external reference of 3.1V either on: -BUFIN with buffer enabled…
    • Resolved
    • Answered

  • ADS7871 Voltage Reference

    Resolved
    Other Parts Discussed in Thread: ADS7871 We are seeing some inconsistency with the ADS7871 readings. A 1.3 voltage input would saturate the reading and cause a max reading of 8191 on one chip and not another. Every board has the same firmware enabling…
    • Resolved
    • Answered

  • ADS7871 I/O ports Output troubles

    Resolved
    Other Parts Discussed in Thread: ADS7871 I am using an ADS7871. I would like the I/O port be configured for output to control the counter that tells the ADC when to start. I can read and write to all registers except register 5 (Digitial I/O state). I…
    • Resolved
    • Answered

  • ADS7871 information about source impedance

    Resolved
    Other Parts Discussed in Thread: ADS7871 Hi Since in my application it is not possible to reduce the analog input channel source impedance arbitrarily, I need some more details: 1. The Datasheet recommends to reduce CCLK, for a analog input channel source…
    • Resolved
    • Answered

  • ADS7871 resolution in single ended operation

    Resolved
    Other Parts Discussed in Thread: ADS7871 Hi again Is it true that the full scale in single ended mode is only 13 bits instead of 14 bits wide? Is there a trick to get the full resolution? Best regards Timon Meier
    • Resolved
    • Answered

  • ADS7871 A/D and FTDI4232H

    Resolved
    Other Parts Discussed in Thread: ADS7871 , TUSB3410 Hello, I am trying to interface with ADS7871 converter using a FTDI4232H. So far I couldn't achieve this. I tried using FTDI D2xx library but that didn't do much for me. I know that I need to use their…
    • Resolved

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