Warming up to the Use of Nanochap BAF003 Analog Front-end in Portable Impedance Detectors

PublishTime： 2024-05-07 Article Source：Nanochap News

With the continuous development of modern medical technology, portable impedance tester gradually shows its unique application value in the field of medical diagnosis and health management due to its convenient and efficient features. As an ultra-low-power chip designed for collecting physiological signals, the BAF003 analog front-end provides strong technical support for the portable impedance tester/portable impedance detectors, which significantly improves the accuracy and efficiency of the tester.

The BAF003 analog front-end chip, with its excellent performance, provides a strong guarantee for the accurate measurement of the portable impedance tester. The chip not only supports 3V power supply applications, but also has a leakage of less than 15nA in disable mode, which greatly reduces the power consumption of the device and enables the portable impedance tester to maintain stable performance over a long period of time. In addition, the BAF003's sensor acquisition circuit has a noise level of less than 6uV and a conversion accuracy of 16bit, which provides the impedance tester with high-precision data acquisition capability, making the test results more accurate and reliable.

In the portable impedance detector, the application of BAF003 analog front-end is mainly reflected in the rapid scanning and measurement of the human body's electrical impedance characteristics. By outputting electrical signals to the human body through the detection electrodes and utilizing the high precision acquisition capability of BAF003, the electrical impedance status values of various parts of the human body can be quickly obtained. These real-time data not only help physicians to clinically assess the status of different organ parts, but also provide an important basis for early detection of diseases and health management.

Meanwhile, the ultra-low power consumption of BAF003 makes the portable impedance detector have a significant improvement in endurance. The device does not need to be recharged frequently during prolonged use, which greatly improves the user experience. In addition, the WLCSP packaging technology used in the BAF003 makes the chip compact and easy to integrate into the portable impedance tester, further enhancing the portability of the device.

Overall, the use of the Nanochap BAF003 analog front-end in the portable impedance detector not only improves the measurement accuracy and efficiency of the detector, but also brings significant improvements to the portability and endurance of the device. In the future, with the continuous progress of medical technology and the popularization and application of portable impedance tester, BAF003 analog front-end will show its strong application potential in more fields, providing more convenient and efficient solutions for people's health management and medical services.

Benefits and Features of BAF003 Analog Front-end

1.Support 3V power supply application

2. Chip leakage is less than 15nA in disable mode.

3. Ultra-low noise, high signal-to-noise ratio, two-stage programmable amplifier

4. Acquisition circuit noise is less than 6μV

5. Conversion accuracy of the effective number of bits up to 16bit

Product Parameters

Supply voltage: 2.8V～3.6V

Package and size: WLCSP (2.4mm X 2.48mm)

Op-amp bias voltage on-chip DAC (0.3V to 2V)

Op-amp Noise: 2.2μV (0.1~10Hz)

On-chip TIA feedback resistor: 200K ~ 10M 16 steps

Programmable Gain Amplifier: 1st stage (1,2,3,4,8,16,32)

- Second stage (1,2,3,4)

ADC precision: 16bit

Chip sleep power consumption: <15nA

Standby current: <4μA

Continuous sampling power consumption: <40μA

Temperature Sensor: 0.1℃ accuracy

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