• Regarding Output Voltage Value

    For the Above circuit the Output of AD8232 is 0.9V offset +( Diff o/p * system gain ). This output is fed to the ADPD107 PD input configured in TIA ADC mode.

    for the out put of TIA ADC should we Consider  eq 11 of Page40?

    By using ADCout we should…

  • RE: I would like to use a SPI for power savings. Does the ADPD103 only have an I2C option?

    Yes, the ADPD103 only has an I2C option. However, there is a recently released upgrade to the ADPD103 called the ADPD105 and ADPD107. These are backwards compatible to the ADPD103, but have better noise performance at lower power points, and the ADPD107…

  • ADPD4001  | ADPD1081 | ADPD188GG | Best Configuration for PPG (2 Green vs 3 Green, Red LED, and IR LED)

    We are working on a real-time wearable PPG solution. We understand that either ADPD4001 or ADPD1081 can be used.

    Q1) I am wondering if you could comment on the accuracy and power consumption of those two ICs. Which one is recommended by you for a wearable…

  • TAGS LIST: Optical

    AD800
    AD803
    AD807
    AD808
    ADN2804
    ADN2805
    ADN2806
    ADN2807
    ADN2811
    ADN2812
    ADN2813
    ADN2814
    ADN2815
    ADN2816
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    ADN2818
    ADN2819
    ADN2855
    ADN2905
    ADN2913
    ADN2915
    ADN2917
    ADL5315
    ADL5317
    LTC5100
  • RE: ADPD103 Drives a LED ( 5V~7V@20mA )

    For some reason I assumed that we were talking about the ADPD105 since it's the latest device in the family. If this is a new design, then you should be looking at the ADPD105 (or ADPD107 if you wanted SPI). The ADPD105 is backwards compatible. There…

  • RE: ADPD105 TIA ADC mode configuration

    Hi Ganesh,

    The maximum sampling rate of our evaluation tool is going to be limited by the communications interface over the UART. In practice, the fastest I've ever been able to get the Wavetool to run is ~1000Hz for single channel operation, 16b data…

  • ADPD105/107 gain and dark skin conditions

    While testing the ADPD107 on darker skin I have had trouble getting the response into a decent range for heart rate sensing even at max LED current, max gain, photodiode through single amp etc. Aside from increasing the optical efficiency and changing…

  • Multiple questions about ADPD105 and ADPD108 and their evalboards

    I work for a Medical device R&D company. We are currently working on a project where we are trying to detect physiological signals deep under the skin using IR which requires an emitter to detector distance of 4+ cm. Because of this, we need to use a…

  • What happens if I don't calibrate the 32MHz clock on the ADPD105?

    We are currently doing measurements to compare the signal to noise ratios (SNR) of the PPG signals that we record with various setups. While doing so, we noticed that although our current software implementation does perform a calibration of the slow…

  • ADI最新中文资料大汇总(2017年6月)

    锵锵锵~时间过得太快,就像龙卷风~又到了该分享本月中文资料的时间啦~

    最新应用笔记、数据手册、《模拟对话》文章、视频、参考电路、在研讨会回放……只需在这里,你就可以全部拿走!

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