| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
9,035 pcs
|
9035 pcs | On Request | 1 | On Request | On Request | 20+ | On Request | On Request | |
|
5,245 pcs
|
5245 pcs | On Request | 1 | On Request | On Request | 17+18+ | On Request | On Request |
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| Manufacturer Name | |
| Halogen Free | |
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The AFE4404YZPR is an ultra-small, integrated analog front end (AFE) from Texas Instruments, specifically designed for wearable optical heart-rate monitoring (HRM) and biosensing applications. It combines a high-performance receiver with a flexible transmitter to support photoplethysmography (PPG) signal acquisition.
Key specifications include a 1-channel input, 22-bit resolution, and an I2C interface for easy integration with microcontrollers. The device supports a wide dynamic range of 100 dB and features a programmable transimpedance gain from 10 kΩ to 2 MΩ. It can simultaneously support up to 3 LEDs with a 6-bit programmable LED current up to 50 mA (extendable to 100 mA). The average current during PPG acquisition is less than 200 µA, making it suitable for battery-powered wearable devices.
The receiver provides 24-bit output data representation of the photodiode current input in twos complement format. It includes individual DC offset subtraction DACs and digital ambient subtraction for improved signal quality. The pulse frequency is programmable from 10 SPS to 1000 SPS. The device operates over a -20°C to 70°C temperature range and requires multiple supply voltages: Rx (2 V to 3.6 V), Tx (3 V to 5.25 V), and IO (1.8 V to 3.6 V). It is available in a compact 2.6 mm × 1.6 mm 15-DSBGA package (15-XFBGA, DSBGA) with 0.5 mm pitch, suitable for space-constrained wearable designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.38 | $2.38 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The AFE4404YZPR operates from -20°C to 70°C.
The AFE4404YZPR is available in a 15-DSBGA package (15-XFBGA, DSBGA) measuring 2.6 mm x 1.6 mm with a 0.5 mm pitch.
The device requires three supply voltages: Rx (2 V to 3.6 V), Tx (3 V to 5.25 V), and IO (1.8 V to 3.6 V).
The AFE4404YZPR is listed as RoHS3 compliant, but this information is unverified and should be confirmed with the manufacturer.
The device has a 22-bit resolution (ADC) with 24-bit output data representation.
The AFE4404YZPR uses an I2C interface.
The dynamic range is 100 dB overall for receiver and transmitter.