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MediaTek’s First Bio-sensing Analog Front-end Chip, MT2511
Published: Feb 23,20162759 Read
MediaTek announced the MT2511, MediaTek’s first bio-sensing analog front-end (AFE) chip designed for health and fitness devices. The MT2511 enables bio signal acquisition through electrocardiography (ECG) and photoplethysmography (PPG) simultaneously.
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MT2511 is extremely power efficient, providing a lower active mode power consumption of less than 0.6mA while capturing PPG. In addition, MT2511 is equipped with MediaTek’s exclusive built-in heart beat interval technology and 4KB SRAM to optimize overall system power consumption for sleep heart rate monitoring. Finally, MT2511 also integrates LED boost driver circuit for saving layout space.
With its support for a greater than 100db dynamic range and high sample rate from 64 to 4KHz, the MT2511 eliminates interference and motion artifacts when collecting the heart’s electric signals. Because the MT2511 gathers accurate pulse data, it enables a variety of applications including electromyography (EMG), electroencephalography (EEG), pulse oximetry (SpO2) and blood pressure.
The flexible design of the MT2511 means it works seamlessly with MediaTek’s existing IoT and wearables platforms, including the MT2502, MT2523, and MT2601 for Android Wear, allowing device manufacturers to cater to a variety of needs. Advantages of the design range from simple to rich applications, with or without touch screens, or paired with a SoC or microcontroller unit (MCU).