Texas Instruments
AFE4404YZPT
AFE4404YZPT
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AFE4404YZPT Texas Instruments - Yeehing Electronics
Ultra-Small Integrated AFE for Wearable, Optical Heart-Rate Monitoring and Biosensing
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 3.297 |
| 100 — 249 | 2.889 |
| 250 — 999 | 2.025 |
| 1,000 + | 1.14 |
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 |
| Input Type | Differential |
| Number of Converters | 1 Converter |
| Output Type | Differential |
| Architecture | Sigma-Delta |
| Brand | Texas Instruments |
| Reference Type | External |
| Analog Supply Voltage | 2 V to 3.6 V |
| Development Kit | AFE4404EVM |
| Digital Supply Voltage | 3.6 V |
| Product Type | Analog Front End - AFE |
| SNR - Signal to Noise Ratio | 100 dB |
| Factory Pack Quantity | 250 |
| Subcategory | Data Converter ICs |
| Unit Weight | 0.000116 oz |
For more information, please refer to datasheet
Documents
| AFE4404YZPT 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.
