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AFE4403YZPT

TIAFE4403YZPT

Texas Instruments
1 Channel AFE 22 Bit 36-DSBGA
Active171 in stock
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Overview

The Texas Instruments AFE4403 is a single-channel analog front-end (AFE) designed for optical heart rate monitoring and pulse oximetry. It integrates a programmable transmit and receive path with a 22-bit analog-to-digital converter (ADC) in a compact 36-DSBGA package. This AFE offers features critical for robust and low-power biometric measurements.

Why Choose This Part

This AFE offers a high 22-bit resolution and up to 110-dB dynamic range, providing accurate and reliable biometric data. Its integrated dual LED driver and programmable gain stages simplify circuit design for optical sensing. The low power consumption of less than 650 uA, along with a dynamic power-down mode, makes it suitable for battery-powered wearable applications.

Applications

Wearable Fitness Trackers
Enabling continuous heart rate monitoring and blood oxygen saturation (SpO2) measurements in smartwatches and fitness bands due to its low power consumption and small form factor.
Medical Diagnostic Equipment
Used in portable pulse oximeters and other non-invasive medical devices requiring high-accuracy photoplethysmography (PPG) data acquisition.
Biofeedback Systems
Integrating into systems that provide real-time physiological feedback, leveraging its precise optical sensing capabilities.
Smart Clothing and Patches
Incorporating into smart garments or adhesive patches for unobtrusive long-term physiological monitoring.

Key Specifications

Mounting Type Surface Mount
Number of Bits 22
Package / Case 36-XFBGA, DSBGA
Number of Channels 1
Supplier Device Package 36-DSBGA
Voltage - Supply, Analog 2V ~ 3.6V
Voltage - Supply, Digital 2V ~ 3.6V

Getting Started

To get started with the AFE4403, utilize the AFE4403EVM evaluation module from Texas Instruments, which provides a complete development platform. The device supports an SPI interface for configuration and data readout. Texas Instruments offers comprehensive software libraries and application notes to aid in firmware development for optical sensing algorithms.

AFE4403 Family

Part NumberDifferenceStock
AFE4403EVM EVM 10
Also available as: AFE4403YZPR