Summary of AMS AS7024 VITAL SIGNS SENSOR MODULE
The AS7024 is a compact, low-power sensor module enabling cuffless 24/7 monitoring of blood pressure, heart rate (HRM), heart-rate variability (HRV), ECG, skin temperature, and resistivity. It integrates optical and electrical front-ends with algorithms for motion compensation. Designed for fitness bands, smart watches, and patches, it uses PPG and ECG technologies to deliver accurate health metrics in space-constrained devices requiring long battery life.
Parts used in the AS7024 Vital Signs Sensor Module:
- 5 Photo Diodes (4 for PPG, 1 for Prox)
- 3 LEDs (2 green, 1 IR)
- Analog Front End (AFE)
- Programmable Sequencer
- Synchronous Demodulators
- High Pass Filter (HP filter)
- Low noise Optical Front End
- Low noise analog electrical front for ECG
- Application Software
- Interfaces for external skin temperature sensors
- Interfaces for external skin resistivity sensors
New Vital Signs Sensor module enables highly accurate, fast and convenient cuffless 24/7 blood pressure, heart-rate (HRM), heart-rate variability (HRV), and electrocardiograms (ECG) measurement
New Vital Signs Sensor module enables highly accurate, fast and convenient cuffless 24/7 blood pressure, heart-rate (HRM), heart-rate variability (HRV), and electrocardiograms (ECG) measurement. The new module integrates all necessary hardware (LEDs, photo-sensor, analog front-end (AFE) and sequencer) and software components. In addition the module enables skin temperature and skin resistivity measurements. The AS7024’s low-power design and small from factor is well suited to application in fitness bands, smart watches and smart patches, in which board space is limited.
Key features
- Single module integrated solution
- Dimension 2.7mm x 6.1mm
- Low noise Optical Front End
- Low noise analog electrical front for ECG and additional measurements
Additional features
- Single module integrated solution – 5 Photo Diodes (4 for PPG, 1 for Prox), 3 LEDs (2 green, 1 IR), Analog Front End
- Dimension 2.7mm x 6.1mm
- Low noise Optical Front End (Synchronous demodulators, Programmable sequencer & HP filter)
- Low noise analog electrical front for ECG and additional measurements
- Algorithms for HRM, motion compensation, blood pressure
The operation of the AS7024 is based on photoplethysmography (PPG) and electrocardiogram (ECG). PPG is the most used HRM method which measures the pulse rate by sampling light modulated by the blood vessels, which expand and contract as blood pulses through them. ECG is the reference for any measurement of the bio potential generated by the heart. The AS7024 is supported by algorithms converting the PPG and ECG readings into digital HRM, HRV and Blood Pressure values. The module includes the LEDs, photo-sensor, analog front-end (AFE) and sequencer as well as application software. In addition to HRM/HRV and Blood Pressure, the module also enables skin temperature and skin resistivity measurements by providing interfaces to external sensors. The AS7024’s low-power design and small from factor is particularly well suited to application in fitness bands, smart watches, sports watches and smart patches, in which board space is limited and in which users look for extended, multi-day intervals between battery recharges.
Read more: AMS AS7024 VITAL SIGNS SENSOR MODULE
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What vital signs can the AS7024 measure?
The module measures blood pressure, heart rate, heart-rate variability, electrocardiograms, skin temperature, and skin resistivity. -
How does the AS7024 determine heart rate?
It uses photoplethysmography to sample light modulated by blood vessels expanding and contracting as blood pulses through them. -
Can this module be used in smart watches?
Yes, its small form factor and low power design make it well suited for smart watches and fitness bands. -
Does the module include motion compensation algorithms?
Yes, the module includes algorithms specifically designed for motion compensation alongside HRM and blood pressure calculations. -
What is the physical dimension of the module?
The module has dimensions of 2.7mm x 6.1mm. -
Does the AS7024 support ECG measurements?
Yes, it features a low noise analog electrical front end for ECG and additional bio potential measurements. -
What components are integrated into the single module solution?
The solution integrates photo diodes, LEDs, an Analog Front End, a sequencer, and application software. -
Why is this module suitable for extended battery life applications?
Its low power design allows for extended multi-day intervals between battery recharges in wearable devices.
