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.