GXSC AFE Hardware and Software Replaces ADS131E08 for Industrial Power Monitoring and Protection

Industrial power systems are comprehensive systems designed to provide stable, safe, and efficient electrical energy for industrial production. They encompass power generation, transmission and distribution, power consumption, and automated control, and consist of four components: the power supply system, the power transformation and distribution system, power-consuming equipment, and the automation and monitoring system. The goal is to ensure power supply reliability, reduce energy consumption, and enhance safety, while achieving optimized power dispatch and fault prediction through real-time monitoring and data analysis.

Industrial power systems operate under complex conditions characterized by intense electromagnetic interference, significant voltage and current fluctuations, a pressing need for synchronous monitoring of multiple parameters, and requirements for rapid fault response. Traditional signal acquisition solutions often suffer from insufficient accuracy, response lag, weak interference resistance, and circuit complexity, making it difficult to meet the stringent requirements of high-end industrial power monitoring and protection.

The GXSC AFE is widely used across all scenarios of industrial power monitoring and protection, covering multiple fields such as power quality monitoring, power metering, fault protection, and renewable energy grid integration, making it the preferred component for front-end signal acquisition in industrial power systems. The GXSC AFE features a built-in programmable gain amplifier and digital filter, enabling 24-bit lossless conversion. With its wide dynamic range, scalable data transfer rates, and internal fault detection and monitoring capabilities, it is widely used in industrial power monitoring and protection as well as test and measurement applications. The chip’s high integration and outstanding performance allow for the creation of scalable industrial power systems while significantly reducing size, power consumption, and overall costs.

The GXSC AFE features a flexible input multiplexer on each channel, which is independently connected to internal reference signals to enable test, temperature, and fault detection functions. Fault detection is performed internally using an integrated comparator with trigger levels controlled by the ADC, operating at data rates up to 64 kSPS. Key features of the chip include:

• Four/six/eight-channel differential ADC inputs

• Dynamic range: 120 dB at 1 kSPS; crosstalk: -125 dB; total harmonic distortion: -108 dB at 50 Hz and 60 Hz

• Single-supply voltage range: 3 V to 5 V for analog power; 1.8 V to 3.6 V for digital power

• Low power consumption: 2.3 mW per channel

• Data rates: 0.25, 0.5, 1, 2, 4, 8, 16, 32, and 64 kSPS

• Programmable gain: 1, 2, 3, 4, 6, 8, 12, and 24

• Fault detection and device testing capabilities

• SPITM data interface and four general-purpose I/O ports

• Excellent ESD protection

• Package: QFP-64, BGA-64

• Operating temperature range: -40°C to +105°C