GX7124 software and hardware replacement AD7124 applied to intelligent analyzers

Intelligent analyzer is an advanced device that can improve work efficiency and accuracy. It can classify and analyze large amounts of data and is mainly used in industrial production, environmental monitoring, medical diagnosis and other fields. The performance of intelligent analyzers largely depends on the accuracy, speed, and reliability of their internal analog-to-digital converters.

The core requirements of intelligent analyzers for analog-to-digital converters are:

Ultra high resolution achieves precise detection

Multi channel synchronous acquisition meets the needs of multiple measurements

Low noise and high stability ensure reliable data

High speed sampling adapts to dynamic signal analysis

Flexible configuration and convenient integration reduce development costs

Intelligent analyzers often use high-resolution multi-channel ADI AD7124, but with the breakthrough of domestic chip technology, the GXSC 24 bit 16 channel highly integrated analog-to-digital converter GX7124 can replace AD7124 with PIN TO PIN, providing a new path for intelligent analyzer solutions with better performance, higher cost-effectiveness, and localized service advantages.

The GX7124 contains 16 channel analog switches, low-noise PGA, low-temperature drift reference source, high matching IDAC, and high-precision 24 bit delta ADC, which are highly integrated to reduce system costs and component count in sensor measurement applications. PGA provides selectable gain, up to 128V/V. These features provide a complete signal front-end solution for temperature sensor measurement applications including thermocouples, thermistors, and resistance temperature detectors, as well as other small signal measurements such as resistance bridge sensors. Its main performance advantages are as follows:

• Effective resolution: 23bits

• Number of channels: 16 single ended/8 pairs of differential

• Output rate: up to 19.2kSPS

• High integration:

Integrated internal benchmark: temperature drift 8ppm/℃, 2.5V

› Programmable differential amplifier (integrated high impedance PGA): 0.02% initial accuracy

Integrate 2 channels with 0.1% matching degree IDAC

Integrated Bias voltage and wire breakage detection

Integrated 2 ℃ precision temperature sensor

• Supports 50/60Hz simultaneous suppression

Single cycle establishment and automatic channel scanning

• Support SPI CRC verification

Digital power supply: 2.7V~5.25V

• Analog power supply: unipolar (2.7V~5.25V)&bipolar (± 2.5V)

• Package: 5.00mm x 5.00mm QFN (32pin)

• Operating temperature range: -40 ° C to+125 ° C