AFE4490RHAT Texas Instruments - Yeehing Electronics

Integrated Analog Front End (AFE) for Pulse Oximeters

Pricing (USD)

Quantity	Unit Price
1 — 99	15.33
100 — 249	13.391
250 — 999	10.325
1,000 +	7.39

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Analog Front End - AFE
RoHS	Y
Series	AFE4490
Type	Oximeter AFE
Resolution	8 bit
Number of Channels	1 Channel
Interface Type	Serial, SPI
Supply Voltage - Max	3.6 V
Supply Voltage - Min	2 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT
Package / Case	VQFN-40
Packaging	Reel
Features	Optical biosensing
Input Voltage	2 V to 3.6 V
Number of Converters	1
Brand	Texas Instruments
Analog Supply Voltage	3.6 V
Moisture Sensitive	Yes
Pd - Power Dissipation	1.54 W
Product Type	Analog Front End - AFE
Factory Pack Quantity	250
Subcategory	Data Converter ICs
Unit Weight	0.003668 oz

For more information, please refer to datasheet

Documents

AFE4490RHAT Datasheet

More Information

The AFE4490 is a fully-integrated analog front-end (AFE) that is ideally suited for pulse-oximeter applications. The device consists of a low-noise receiver channel with a 22-bit analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The device is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the device, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI™ interface.