Texas Instruments
AFE4420YZT
AFE4420YZT
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AFE4420YZT Texas Instruments - Yeehing Electronics
Ultra-small integrated AFE with FIFO for multisensor wearable optical heart-rate monitoring
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 5.123 |
| 100 — 249 | 4.176 |
| 250 — 999 | 3.282 |
| 1,000 + | 1.95 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Analog Front End - AFE |
| RoHS | Y |
| Series | AFE4420 |
| Type | Optical Biosensing |
| Resolution | 24 bit |
| Number of Channels | 4 Channel |
| Interface Type | I2C |
| Supply Voltage - Max | 5.5 V |
| Supply Voltage - Min | 1.7 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | DSBGA-30 |
| Packaging | Reel |
| Features | Optical Biosensing |
| Number of Converters | 1 Converter |
| Brand | Texas Instruments |
| Development Kit | AFE4420EVM |
| Product Type | Analog Front End - AFE |
| Factory Pack Quantity | 250 |
| Subcategory | Data Converter ICs |
For more information, please refer to datasheet
Documents
| AFE4420YZT Datasheet |
More Information
The AFE4420 is an analog front-end for optical bio-sensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The device supports up to four switching light-emitting diodes (LEDs) and up to four photodiodes. Up to 16 signal phases can be defined and the signal can be acquired from each phase in a synchronized manner and stored in a 128-sample First in, First out (FIFO) block. The FIFO can be read out using either an I2C or a SPI interface. The AFE also has a fully integrated LED driver with an 8-bit current control. The device has a high dynamic range transmit-and-receive circuitry that helps with the sensing of very small signal levels.
