Description
AFE4404YZPR Texas Instruments - Yeehing Electronics
Ultra-Small Integrated AFE for Wearable, Optical Heart-Rate Monitoring and Biosensing
Pricing (USD)
Quantity | Unit Price |
1 — 99 | 2.747 |
100 — 249 | 2.407 |
250 — 999 | 1.688 |
1,000 + | 0.95 |
The above prices are for reference only.
Specifications
Manufacturer | Texas Instruments |
Product Category | Analog Front End - AFE |
RoHS | Y |
Series | AFE4404 |
Type | Heart Rate and Oximeter AFE |
Resolution | 24 bit |
Sampling Rate | 1 kS/s |
Number of Channels | 1 Channel |
Interface Type | Serial, I2C |
Supply Voltage - Max | 5.25 V |
Supply Voltage - Min | 1.8 V |
Minimum Operating Temperature | - 20 C |
Maximum Operating Temperature | + 70 C |
Mounting Style | SMD/SMT |
Package / Case | DSBGA-15 |
Packaging | Reel |
Features | Optical biosensing |
Height | 0.5 mm |
Input Type | Differential |
Length | 2.6 mm |
Number of Converters | 1 Converter |
Output Type | Differential |
Width | 1.6 mm |
Architecture | Sigma-Delta |
Brand | Texas Instruments |
Analog Supply Voltage | 2 V to 3.6 V |
Product Type | Analog Front End - AFE |
SNR - Signal to Noise Ratio | 100 dB |
Factory Pack Quantity | 3000 |
Subcategory | Data Converter ICs |
Unit Weight | 0.000116 oz |
For more information, please refer to datasheet
Documents
AFE4404YZPR Datasheet |
More Information
The AFE4404 is an analog front-end (AFE) for optical bio-sensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The device supports three switching light-emitting diodes (LEDs) and a single photodiode. The current from the photodiode is converted into voltage by the transimpedance amplifier (TIA) and digitized using an analog-to-digital converter (ADC). The ADC code can be read out using an I2C interface. The AFE also has a fully-integrated LED driver with a 6-bit current control. The device has a high dynamic range transmit and receive circuitry that helps with the sensing of very small signal levels.