4 Channel AFE49I30YZR Ultra-Small Integrated Analog Front End - AFE 24 Bit 30

Product Specification

4 Channel AFE49I30YZR Ultra-Small Integrated Analog Front End - AFE 24 Bit 30-DSBGA

Product Description Of AFE49I30YZR

The AFE49I30YZR is an analog front-end for optical bio-sensing/ PPG and ECG measurement applications. The device supports up to six switching light-emitting diodes (LEDs) and up to four photodiodes. Up to 24 signal phases can be defined and the PPG or ECG signals can be acquired from each phase in a synchronized manner.

Specification Of AFE49I30YZR

Features Of AFE49I30YZR

• Supports signal acquisition of up to 24 phases
• Flexible allocation of 6 LED, 4 PD in each PPG phase
• Synchronized PPG/ECG signal acquisition with each phase configurable as PPG or ECG, and at different data rates
• Synchronized PPG/ECG supports up to 1 kHz data rate
• ECG-only mode supports up to 4 kHz data rate
• PPG signal chain:
• System SNR up to 108-dB at 16 µA PD current
• Low current for continuous operation on a wearable device with a typical value: 15 µA for an LED, 20 µA for the receiver
• PPG Transmitter:
• Supports common anode LED configuration
• 8-Bit programmable LED current with range adjustable from 25 mA to 250 mA
• Mode to fire two LEDs in parallel with independent per-phase current control
• Programmable LED on-time per-phase
• Simultaneous support of 6 LEDs for SpO2, HRM, or multi-wavelength HRM
• PPG Receiver:
• Supports 4 time-multiplexed photodiode inputs
• 2 parallel receivers to sample two PD channels simultaneously
• Individual ambient offset subtraction DAC at each TIA Input with 8-bit per-phase control and range adjustable up to 255-µA
• Individual LED offset subtraction DAC at each TIA input with 5-bit per-phase control and
• 15.5-µA range
• Close to 100 dB ambient rejection up to 10 Hz
• Noise filtering with programmable bandwidth
• Transimpedance Gain: 3.7 kΩ to 1 MΩ
• ECG Signal Chain
• 1-lead ECG with RLD output for bias
• INA gain programmable from 1.6 – 13
• <1 µVrms input noise (in a 1-150 Hz bandwidth) at 4-kHz sample rate
• Integrated 450 Hz Low Pass Filter
• AC, DC lead-off detect with 3.125-100 nA current and programmable interrupt
• Supports external clock and internal oscillator modes
• Option to acquire data synchronized with a system master clock
• Automatic cancellation of DC from ambient, LED
• FIFO with 128-sample depth
• I2C interface
• 2.6-mm × 2.1-mm DSBGA, 0.4-mm pitch
• Supplies: Rx: 1.7 V-1.9 V (LDO bypass); 1.9 V-3.6 V (LDO enabled), Tx: 3 V-5.5 V, IO: 1.7-3.6 V
• Supports operation with 2 supplies - 1.8 V, 5 V

Applications Of AFE49I30YZR

• ECG on a wearable device
• Synchronized PPG, ECG for PTT-based Blood pressure
• Optical heart-rate monitoring (HRM) and Heartrate variability (HRV) for wearables, hearables
• Pulse oximetry (SpO2) measurements
• Maximum oxygen consumption (VO2 Max)

Simplified Schematic Of AFE49I30YZR

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FAQ

Q: Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q: Which Certificates do you have?
A: We are ISO 9001:2015 Certified Company and member of ERAI.
Q: Can you support small quantity order or sample?Is the sample free?
A: Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q: How to ship my order? Is it safe?
A: We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q: What about the lead time?
A: We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.