| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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24,432 pcs
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24432 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
2,055 pcs
|
2055 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request |
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The AFE4404YZPT from Texas Instruments is an ultra-small, integrated analog front end (AFE) designed for wearable optical heart-rate monitoring and biosensing applications. It combines a 22-bit ADC with a 24-bit data output representation (twos complement) and supports up to three LEDs for SPO2, HRM, or multi-wavelength measurements. The device operates with a receiver supply voltage of 2 V to 3.6 V, transmitter supply of 3 V to 5.25 V, and I/O supply of 1.8 V to 3.6 V.
Key electrical characteristics include a dynamic range of 100 dB, programmable LED current from 0 to 50 mA (extendable to 100 mA), and an average current consumption of less than 200 µA for PPG signal acquisition. The pulse frequency is programmable from 10 SPS to 1000 SPS, with flexible clock options including an external 4-60 MHz clock or internal 4 MHz oscillator. The interface uses I2C for communication.
The device is housed in a 15-pin DSBGA package (YZP code) measuring 2.6 mm × 1.6 mm with a 0.5 mm pitch, surface mount mounting. Operating temperature range is -20°C to 70°C. The AFE4404YZPT is suitable for clinical fingertip pulse oximetry, hearables, and optical HRM systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.85 | $2.85 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
Receiver supply: 2 V to 3.6 V, Transmitter supply: 3 V to 5.25 V, I/O supply: 1.8 V to 3.6 V.
It comes in a 15-pin DSBGA package (YZP code) measuring 2.6 mm × 1.6 mm with a 0.5 mm pitch, surface mount.
-20°C to 70°C.
RoHS3 compliant (unverified, low confidence).
22-bit ADC resolution with 24-bit data output representation.
Simultaneously supports up to 3 LEDs for SPO2, HRM, or multi-wavelength.
100 dB dynamic range.