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ADS8681: without LPF

Ryuji
Guru 20090 points
Part Number: ADS8681
Other Parts Discussed in Thread: ADS8861, ADS8860, TIPD151

Hello,

Are there any device without LPF 
Is there a device that removed the LPF from the ADS8681?

16bit, +/-10V input, 1MSPS , SPI I/F is required.

Best Regards,
Ryuji Asaka

  • 0
    TI__Expert 5485 points

    Hi Ryuji San

    We do not have any device that is 16 bit and supports  +/-10V range without internal LPF .

    We can work around devices like ADS8861/ADS8920 but we will need to attenuate input signal.

    Please let me now if you would like to explore this option

    Thanks & Regards

    Abhijeet Godbole

  • 0 in reply to Abhijeet Godbole
    Guru 20090 points
    Hello Godbole san,

    Since our customer necessary 750ksps , they would like to use ADS8860 instead of ADS8681.
    Then they request the application note of attenuate input signal for +/-10V signal.
    Are there any related application note?

    Best Regards,
    Ryuji Asaka
  • 0 in reply to Ryuji
    TI__Expert 5485 points

    Hi Ryuji San

    ADS8681 is 16 bit 1MSPS ADC. So customer can use it at 750ksps.

    There is TI precision design TIPD151 which has input signal conditioning circuit which can be used to scale down input signal to ADC FS range. Here is the link

    Please let me know if you need additional information.

    Thanks & Regards

    Abhijeet