16-Channel, 24-Bit Analog-to-Digital Converter GX1258 Compatible with ADS1258 for Medical Instrumentation Applications

As a high-performance 16-channel, 24-bit analog-to-digital converter, the GX1258 has a wide range of applications in the field of medical instrumentation, such as physiological signal acquisition and monitoring, medical imaging equipment, etc. The GX1258 performs high-precision analog-to-digital conversion of weak ECG signals, due to its low noise (2.8 μVrms at 1.8 kSPS), high-resolution (24-bit) and good DC stability (0.02 μV offset per degree Celsius). ) and good DC stability (0.02μV offset per degree Celsius, 0.4ppm gain offset per degree Celsius), the GX1212 is able to accurately digitize biological signals.

Low Noise Performance: The GX1258‘s low noise characteristic of only 2.8μVrms at 1.8kSPS effectively reduces interference during the signal conversion process, for example, ensuring signal purity in ECG signal acquisition, which in turn improves the reliability of diagnosis.

Multi-Channel Simultaneous Acquisition: In the process of biochemical analysis, it is often necessary to test multiple samples or chemical components at the same time, and the GX1258‘s multi-channel input performance can satisfy this demand, realizing simultaneous acquisition and parallel processing of multi-channel data, improving the efficiency and detection throughput of the biochemical analyzer.

Low Power Consumption: The GX1258 operates from a unipolar +5V power supply, allowing the digital voltage range to be from 2.7V to 5.25V. Including standby, hibernation, and shutdown modes, the low power consumption of 42mW makes it suitable for portable instrumentation applications.

Key Features:

- Channel polling rate: 23.7kSPS/channel

- 16 single-ended or 8 differential inputs

- 0.0003% integral nonlinearity

- DC Stability (typical): 0.02 μV/ ℃ misalignment drift, 0.4ppm/ ℃ gain drift

- Sensor break detection

- Conversion control pin

- Multiple outputs for external signal processing

- On-chip temperature, reference, detuning, gain and supply voltage readback

- 8 General Purpose Inputs and Outputs (GPIOs)

- 32.768kHz crystal oscillator or external clock