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AFE4405 |
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| Part Number | AFE4405 |
| Manufacturer | Texas Instruments (https://www.ti.com/) |
| Description | The AFE4405 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 switc... |
| Features |
•1 Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 8-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM • Receiver: – Supports 2 Time-Multiplexed Photodiode Inputs – 24-Bit Representation of the Current Input from the Photodiode in Twos Complement Format – Individual DC Offset Subtraction DAC (±15.75-µA Range) at TIA Input for Each LED, Ambient – Digital Ambient Subtraction at ADC Output – Transimpedance Gain: 10 kΩ to 2 MΩ – Dynamic Range: 100... |
| Document |
 AFE4405 Data Sheet
PDF 801.36KB |
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