The ADPD4100/ADPD4101 are available in a 3.11 mm × 2.14 mm, 0.4 mm pitch, 33-ball WLCSP and 35-ball WLCSP The multiple operation modes accommodate various sensor measurements, including, but not limited to, photoplethysmography (PPG), electrocardiography (ECG), electrodermal activity (EDA), impedance, capacitance, temperature, gas detection, smoke detection, and aerosol detection for various healthcare, industrial, and consumer applications. Multiple operating modes are provided, enabling the ADPD4100/ADPD4101 to be a sensor hub for synchronous measurements of photodiodes, biopotential electrodes, resistance, capacitance, and temperature sensors. The analog front end (AFE) rejects signal offsets and corruption from asynchronous modulated interference, typically from ambient light, eliminating the need for optical filters or externally controlled dc cancellation circuitry. The devices use a 1.8 V analog core and 1.8 V/3.3 V compatible digital input/output (I/O). The control circuitry includes flexible LED signaling and synchronous detection.
#CARDIOGRAPH ANALOG ECG OUTPUT SIGNAL PORT SERIAL#
The data output and functional configuration utilize an I 2C interface on the ADPD4101 or a serial port interface (SPI) on the ADPD4100. Twelve time slots are available, enabling 12 separate measurements per sampling period. The ADPD4100/ADPD4101 operate as a complete multimodal sensor front end, stimulating up to eight light emitting diodes (LEDs) and measuring the return signal on up to eight separate current inputs.
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