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AS7030B

Functional Description

Datasheet

• PUBLIC

DS000716

• v1-00 • 2020-Jun-10

128

│ 3

Functional Description

The operation of the AS7030B is based on photoplethysmography (PPG) and electrocardiogram

(ECG). PPG is the most used HRM and HRV 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 embedded ECG analog front end satisfies IEC 60601-2-47 requirements.

The module includes the LEDs, photo-sensor, analog front-end (AFE) and sequencer as well as

application software. In addition, the module also enables skin temperature and skin resistivity

measurements by providing interfaces to external sensors.

Built-in infrared emitter and dedicated photodiode enable easy integration of proximity function in

wearable or mobile devices.

Compared to the previous generation AS7030B has 250% larger photodiode with improved the optical

performance. This in combination with more efficient LEDs allows reducing current consumption while

achieving high PPG performances.

The AS7030B

’s low-power design and small form 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.

1.1

Key Benefits & Features

The benefits and features of AS7030B, Vital Sign Sensor, are listed below:

Figure 1:

Added Value of Using AS7030B

Benefits

Features

Address all skin types

Improved optical path

Higher optical NR

250% larger embedded photodiode

Allows smallest application size e.g. narrow

HRM measurement band

Single device integrated optical solution

Electrocardiogram ECG with dry electrodes

Embedded low noise analog front end for ECG

signals acquisition

Enabling blood pressure measurements

Synchronized PPG and ECG acquisition

Good HRM measurement quality

Low noise analog optical front end

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