AFE4404YZPT - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AFE4404YZPT
Manufacturer

TI
ChipWorker Part#

CW6492420
Category

Specialty Application IC
Package

XFBGA-15
Description

AFE Medical 1ADC 22Bit 1.8V/3.3V/5V 15Pin DSBGA T/R
Documentation

Datasheet

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AFE4404YZPT Specifications

Attribute	Attribute Value

Part Number	AFE4404YZPT
Manufacturer	TI
ChipWorker Part#	CW6492420
Category	Specialty Application IC
Documentation	Datasheet
Number of Pins	15 Pin
Case/Package	XFBGA-15
Supply Voltage (DC)	3.00V (min)
Number of Channels	1 Channel
Number of Positions	15 Position
Number of Bits	24 Bit
Number of ADCs	1 ADC
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-20 ℃
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	3 V
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Operating Temperature	-20℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The AFE4404YZPT is an Analog Front-End 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.
Transmitter - supports common anode LED configuration
Transmitter - 100dB dynamic range
Transmitter - 6-bit programmable LED current to 50mA (Extendable to 100 mA)
Transmitter - Programmable LED on-time
Transmitter - Simultaneous Support of 3 LEDs for Optimized SpO2, HRM or multi-wavelength HRM
24-bit Representation of the current input from a photodiode in twos complement format
Receiver - Individual DC offset subtraction DAC at TIA input for each LED and ambient phase
Receiver - Digital ambient subtraction at ADC output
Receiver - 10 kR to 2 MR Programmable transimpedance gain
Receiver - 100dB Dynamic range
Receiver - Dynamic power-saving mode to reduce current to less than 200µA
10 to 1000SPS Pulse frequency
Flexible pulse sequencing and timing control
Flexible clock options - External 4 to 60MHz Input Clock, Internal 4MHz Oscillator

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