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Texas Instruments AFE4900 | Demoboard TIDA-01580
Wearable, Wireless, Multi-Parameter Patient Monitor Reference Design
Overview
| Topology | Other Topology |
| IC revision | E1 |
Description
This reference design is a simple, wearable, multi-parameter, patient monitor that uses a single-chip, biosensing front end, the AFE4900 device, for synchronized electrocardiography (ECG) and photoplethysmography (PPG) measurements. The measured data is transferred to a remote location using the CC2640R2F device (supporting BLE 4.2 and 5). The reference design is operated using a single CR3032 battery and provides a battery life of 30 days. The raw data is available for the user to calculate heart-rate, oxygen concentration in blood (SpO2), pulse-transit time (PTT), and ECG. Two onboard light-emitting diodes (LEDs) indicate low-battery detection and ECG lead-off detection for users.
Features
- Simple, wearable, multi-parameter, patient monitor for PPG and ECG
- Provides raw data to calculate heart rate, SpO2, and PTT
- Uses single-chip, biosensing front-end AFE4900 device for synchronized ECG and PPG measurements PPG (Optical heart-rate monitoring and SpO2) supports four LEDs and three photodiodes (PDs), with digital ambient subtraction to improve signal-to-noise ratio (SNR)
- ECG (LEAD I) signals
- Integrated Arm® Cortex®-M3 and 2.4-GHz RF transceiver (CC2640R2F) supports wireless data transfer - BLE 4.2 and 5.0
- Operated by CR3032 (3-V, 500-mA coin-cell battery), with battery life of 30 days using highly efficient DC/DC converters
- Small form factor helps with easy adaptation to wearable applications
Typical applications
- Digital Stethoscope / Electrocardiogram (ECG) / Fitness Machines / Pulse Oximeter / Wearable Fitness & Activity Monitor / Wireless Patient Monitor
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Technical Reference | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060GS75000 | SPEC | 6 files | WL-SMCW SMT Mono-color Chip LED Waterclear | 525 | Green | 515 | 430 | 3.2 | InGaN | 140 | – | – | – | 0603 | -40 up to +85 °C | – | – | – | 1.6 | 0.8 | 0.7 | – | – | – | – | – | – | – | ||
 | 150060RS75000 | SPEC | 6 files | WL-SMCW SMT Mono-color Chip LED Waterclear | 625 | Red | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 up to +85 °C | – | – | – | 1.6 | 0.8 | 0.7 | – | – | – | – | – | – | – | ||
 | 74404024022 | SPEC | 8 files | WE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | 2512 | -40 up to +125 °C | – | – | – | 2.5 | 2 | 1.2 | – | – | 2.2 | 1.65 | 1.9 | 80 | 83 | ||
 | 885012206046 | SPEC | 6 files | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 100 nF | ±10% | 16 | 0603 | -55 up to +125 °C | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | X7R0603104K016DFCT10000 | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060GS75000 | SPEC | |
| 150060RS75000 | SPEC | |
| 74404024022 | SPEC | |
| 885012206046 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Technical Reference | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | fres (MHz) | Samples |
|---|