ADPD103BCPZ

Overview

The ADPD103BCPZ is a multifunction photometric front end integrating an analog front end (AFE), a 14-bit analog-to-digital converter (ADC), and three LED drivers. It supports up to eight optical inputs and features best-in-class ambient light rejection without requiring external photodiode filters. The device operates on a 1.8 V supply with an I2C interface, enabling flexible sampling frequencies from 0.122 Hz to 3.820 kHz. It includes a 20-bit burst accumulator and on-board sample-to-sample accumulation for high-resolution data processing.

Feature Summary

• Integrated AFE, 14-bit ADC, and three independent LED drivers (8 mA to 250 mA)
• Supports up to eight optical inputs with separate data registers per combination
• Ambient light rejection capability without external optical filters
• Flexible sampling frequency ranging from 0.122 Hz to 3.820 kHz

Applications

• Body worn health and fitness monitors, such as heart rate monitoring
• Clinical measurements including SpO2
• Industrial monitoring applications
• Background light measurements

Procurement Notes

Verify the package type matches the specific suffix; the BC prefix indicates a Lead-Free LFCSP package. Confirm RoHS compliance status through official documentation. Check for availability constraints or lead time variations directly with Analog Devices or authorized distributors before ordering.

Selection Notes

Select this component for applications requiring integrated photometric sensing with low power consumption. Ensure the design accommodates a 1.8 V digital and analog supply voltage. Verify that the required number of optical channels does not exceed the eight-input limit and that the I2C interface speed is compatible with the system controller.

Part Context

The ADPD103BCPZ belongs to the ADPD103 series of photometric front ends manufactured by Analog Devices. It is designed to replace discrete solutions by combining signal conditioning, conversion, and LED driving into a single compact package, simplifying the design of optical measurement systems.

Replacement Considerations

Consult the Analog Devices ordering guide for alternative packages or temperature grades within the ADPD103 family. Verify pin compatibility and register mapping if substituting with other members of the ADPD series.