• ADPD4100 pressure sensor configuration

    Hi. I have some difficulty getting the ADC values for the pressure sensor via ADPD4100.

    The pressure sensor has two output which S+ and S-.

    The difference of the two output is the resultant output which ranges from 0.6mV(deflated wristband) to 9.0mV(inflated…

  • RE: Reading values from ADPD4000/ADPD4100

    Hi there,

    The example is for implementing firmware of a micro control board that works with any sensor board designed with ADPD4000/4001 or ADPD4100/4101. The EVAL-ADPD4100Z-PPG board is a one of the sensor boards with ADPD4100 on it. The companion micro…

  • ADPD4100 Few Questions

    Hi all!

    I'm just getting started with ADPD 4100 and had a few questions based on my read of the datasheet + eval board datasheet.

    1. Hoping to better understand the INP12_x register (pg. 91 on the datasheet). If INP12_x is set to 0111 (IN1 and IN2…

  • ADPD4000 vs ADPD4100

    What are the differences between the ADPD4000 vs the ADPD4100 regarding performance/advantages/features.



  • Q. ADPD4100/ADPD4101 power sequence problem?

    I have a question regarding the ADPD4100/ADPD4101.

    The customer made 6 boards of its own and all used ADPD4101.
    Three ADPD4101s operate normally, but the other three do not.
    (Sometimes it works normally.)

    When ADPD4101 does not operate normally, the…

  • ADPD4100 driving laser diode instead of LEDs


    Can I use laser Diode (LD) instead of LEDs with the ADPD4100?

    If yes, please advise how and if you have an application note on that 


  • ADPD4100 (EVAL-ADPD4100Z-PPG) SPI Configuration Procedure


    I am trying to configure the ADPD4100 registers over SPI. Per the spec sheet, I have been writing to the registers in order one after the other after giving the first register address. However, when I read back one of the register values after writing…

  • ADPD4100/ADPD4101 Integrator chopping SUBTRACT_x and REVERSE_INTEG_x

    Would the bit pattern for these two fields ever be different? If so, why?


  • what is the default configuration for ADPD4100 Wrist worn PPG for Heart Rate Monitoring?

    Hi. I am using EVAL-ADPD4100Z-PPG for heart rate monitoring.

    Are you able to share an example configuration for heart rate monitoring using ADPD4100 (SPI)?

    It would be a great help and really appreciate it.

  • what is the default configuration for ADPD4100/ADPD4000 Wrist worn PPG for Heart Rate ?

    Hello All,

    I understand that the ADPD4100/ADPD4000 configuration must be defined for each use-case.

    I am using ADPD4100 for a wrist worn heart rate estimation application.

    what is the basic configuration for this?