Replacement for AD7699, ADC GX7699 in medical device ECG/EKG applications

ECG/EKG signals are weak and complex bioelectric signals that need to be accurately captured and converted in order to provide accurate information for medical diagnosis. Therefore, in the field of electrocardiographic measurements and analysis, the core device of high-precision and high-performance analog-to-digital converters, the GXSC GX7699‘s outstanding performance is widely used in this field. The high resolution and low noise characteristics of this analog-to-digital converter enable precise quantification of small ECG/EKG signal variations to capture subtle features of cardiac activity.

The GX7699‘s fast sampling rate ensures that enough data points are acquired in a short period of time, which is important for accurately capturing instantaneous changes in cardiac electrical activity, such as arrhythmias and other abnormalities. Even brief abnormal pulses can be quickly and accurately captured by the GX7699.

GX7699 product features are described:

1, GX7699 is an 8-channel, 16-bit, SAR analog-to-digital converter with a single VDD power supply.

2, GX7699 built-in multi-channel, low-power data acquisition system requires all the devices, including a lossless 16-bit SAR ADC, low crosstalk 8-channel multiplexer, low-drift 4.096V reference and buffer, temperature sensors, selectable unipolar filters, and sequences of sequential scanning channels of the sequence generator.

The GX7699 uses an SPI interface to read and write to the configuration registers, which is powered by a separate VIO supply.

4. The GX7699 is packaged in a QFN-20 package and operates at temperatures from -40°C to +125°C. The GX7699 is also available in a QFN-20 package.

In addition, the GX7699 has good linearity and low power consumption characteristics. Good linearity ensures a high degree of consistency between the converted digital signal and the original analog signal, providing a reliable data base for subsequent signal processing and diagnostic analysis. The low power consumption makes it suitable for portable ECG/EKG devices, which is convenient for patients‘ daily monitoring and mobile use.

In actual ECG/EKG devices, the GX7699 works in tandem with the front-end sensors and subsequent signal processing algorithms to provide doctors with clear and accurate ECG waveforms to help them diagnose cardiac disorders, such as myocardial infarction, arrhythmia, and cardiac hypertrophy, and provide a key basis for the development of treatment plans.