Reference Design For ECG, SpO2, PTT and Coronary heart Price Monitor

Reference design for a easy wearable that may monitor a number of well being parameters together with coronary heart price, ECG, SpO2, and PTT.

PCB of the Reference Design (Supply: TI)

After 2019, since Covid occurred, everybody throughout the globe began taking their well being extra severely, and thus the demand for wearable well being screens grew drastically. So, if you’re planning to make your individual multiparameter well being monitor, then look no additional as this reference design from TI will simplify your job.

TIDA-01580-E1 from Texas Devices (TI) is a reference design of a easy, wearable, multiparameter, affected person monitor which may measure synchronized electrocardiography (ECG) and photoplethysmography (PPG) measurements. The reference design gives uncooked information to calculate SpO2, coronary heart price, PPT, and so on. It helps 4 LEDs and three photodiodes (PDs), with digital ambient subtraction to enhance the signal-to-noise ratio (SNR). The design comes with an Arm Cortex M3 MCU and a 2.4 GHz RF transceiver that permits wi-fi information switch by BLE 4.2 and 5.0. The reference design affords a battery lifetime of 30 days in a single cell. The small kind issue of the reference design permits customers to implement it in numerous wearable functions.

The design employs AFE4900, a single-chip, biosensing entrance finish, for measuring ECG and PPG. The design employs CC2640R2F which provides Bluetooth connectivity to yhe reference design. The CC2640R2F utilises BLE 4.2 and 5 to switch the measured information. The design employs a CR3032 battery as an influence supply which may run it for as much as 30 days. With small modifications to the design, a chargeable cell will be employed within the design.
The reference design gives the uncooked information wirelessly, which must be processed externally at a microcontroller (MCU) to get coronary heart price, the oxygen focus in blood (SpO2), pulse-transit time (PTT), and ECG. Two onboard light-emitting diodes (LEDs) point out low battery detection and ECG lead-off detection for customers.

The reference design has been examined by TI. To simplify the designing course of, TI has offered the whole set of Design Sources together with schematics, invoice of supplies, PCB format, and take a look at information, which will be downloaded from right here.

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