Overview
The AFE4410YZR is a highly integrated analog front-end (AFE) component produced by Texas Instruments, designed specifically for wearable devices, continuous optical heart rate monitoring, and biosensing applications. This compact and efficient AFE is tailored for low-power operation, making it ideal for battery-powered devices. Its market positioning targets wearable health and fitness devices, offering precise and continuous heart rate monitoring capabilities. The AFE4410YZR stands out for its high dynamic range, low current consumption, and flexible LED and photodiode configurations, making it a competitive choice in the wearable technology market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Dynamic Range | Up to 100dB | dB | Enables precise heart rate monitoring |
| LED Current | Up to 200mA | mA | 8-bit programmable |
| Receiver Current | 25µA | µA | Typical value |
| Operating Temperature | -20°C to +70°C | °C | |
| Package | DSBGA | 2.6mm × 2.1mm, 0.4mm pitch | |
| Power Supply (Tx) | 3V to 5.25V | V | |
| Power Supply (Rx) | 1.8V to 3.6V | V | LDO bypass or enabled |
| Interface | I²C, SPI | Selectable via pin | |
| FIFO Depth | 128 | Programmable partitioning | |
| Sampling Rate | Up to 25Hz | Hz | Configurable |
Key Features
- High dynamic range for accurate heart rate monitoring
- Low current consumption for extended battery life
- Flexible LED and photodiode configurations
- Integrated FIFO for efficient data handling
- Compact DSBGA package for space-constrained designs
- Supports multiple interfaces (I²C, SPI)
Applications
The AFE4410YZR is widely used in wearable health and fitness devices, such as smartwatches, fitness bands, and continuous heart rate monitors. Its precise heart rate monitoring capabilities make it suitable for medical-grade applications, while its low power consumption ensures long battery life in consumer electronics. Additionally, it can be used in biosensing applications for monitoring other physiological parameters, such as SpO2 levels.
Q & A
What is the dynamic range of the AFE4410YZR?
Up to 100dB, enabling precise heart rate monitoring.
What is the typical current consumption for the receiver?
25µA, ensuring low power operation.
What is the operating temperature range?
-20°C to +70°C.
What package does the AFE4410YZR use?
DSBGA package with dimensions of 2.6mm × 2.1mm and a 0.4mm pitch.
What interfaces are supported?
I²C and SPI, selectable via pin.
What is the maximum LED current?
Up to 200mA, with 8-bit programmability.
What is the FIFO depth?
128, with programmable partitioning.
What is the sampling rate?
Up to 25Hz, configurable for specific applications.
What is the power supply range for the transmitter?
3V to 5.25V.
What is the power supply range for the receiver?
1.8V to 3.6V, with LDO bypass or enabled options.
