DESCRIPTION

· The ADPD105/ADPD106/ADPD107 are efficient photometric front ends with a 14-bit ADC and a 20-bit burst accumulator.

· They feature integrated LED drivers and control circuitry for flexible LED signaling and synchronous detection.

· These devices offer superior ambient light rejection and are compatible with low capacitance photodiodes (<100 pF).

· The ADPD105 uses a 1.8 V I2C interface, while the ADPD106 and ADPD107 use SPI for data output and configuration.

· Available in compact WLCSP and LFCSP packages.

FEATURES

· Fully integrated AFE, ADC, LED drivers, and timing core.

· Best-in-class ambient light rejection without optical filters.

· Three 370 mA LED drivers with flexible short LED pulses.

· 20-bit burst accumulator and up to 27-bit sample accumulation.

· Low power operation with SPI/I2C interfaces and 1.8 V core.

· Flexible sampling frequency (0.122 Hz to 3820 Hz) and FIFO data operation.

APPLICATIONS

· Wearable health and fitness monitors.

· Clinical measurements (e.g., SpO2).

· Industrial monitoring.

· Background light measurements.