Analog Devices ADPD1080/ADPD1081, User Manual

Page: 6 / 9

UG-1255 EVAL-ADPD1081Z-PPG User Guide
Rev. 0 | Page 6 of 9
OPTIMIZING AND RUNNING THE ADPD1080 /
ADPD1081
After the configuration file is loaded, the settings can be further
optimized using the
ADPD Config window shown in Figure 11.
Typically, the device is set up under some set of conditions, for
example, measuring the response from a fixed reflector or
measuring a PPG signal from the wrist (see Figure 12). Settings
can be optimized for any set of conditions by manipulating LED
drive currents, TIA gain, and AFE timing or by using different
operating modes that may be more optimal for a specific set of
conditions, for example, using float mode for very low current
transfer ratio (CTR). For information on optimization of the
ADPD1080 / ADPD1081 , refer to the ADPD1080 / ADPD1081 data
sheet. For functional descriptions of the Applications Wavetool,
refer to the Applications Wavetool user guide that is provided in
the software package download.
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Figure 12. Example of a PPG Signal Measured from the Wrist