24 bit synchronous sampling analog-to-digital converter GX131E0X replaces ADS131E0X for multi-phase current and voltage sampling in new energy inverters

In new energy photovoltaic, wind power, and energy storage power generation systems, the inverter is the "energy bridge" between the DC power generation unit and the AC power grid. It needs to collect real-time and accurate multiphase current and voltage signals on the AC and DC sides. The DC side needs to monitor the voltage and input current of the photovoltaic string/energy storage battery, and the AC side needs to synchronously collect three-phase voltage and three-phase current (calculate active/reactive power, control grid connected power quality).

The 24 bit synchronous sampling Δ - ∑ analog-to-digital converter GX131E0X of GXSC is designed specifically for industrial grade multi-channel synchronous sampling, supporting 4/6/8 channel differential inputs, integrating programmable gain amplifier (PGA), internal reference, and onboard oscillator. With its wide dynamic range, expandable data transmission rate, and internal fault detection monitoring device, the operating voltage range is 1.8V to 3.6V. Its core characteristics are highly compatible with the requirements of "synchronization, precision, wide range, and anti-interference" for multi-phase sampling of new energy inverters.

GX131E0X is favored for industrial power monitoring and protection, as well as testing and measurement applications. True high impedance input supports GX131E0X to be directly connected to a resistive voltage divider network or voltage transformer to measure line voltage, or connected to a current transformer or Rogowski coil to measure current. With high integration and excellent performance, the GX131E0X series products can create upgradable industrial power systems while significantly reducing size, power consumption, and overall cost.

GX131E0X feature introduction:

Four/six/eight channel differential analog-to-digital converter input

Dynamic range: 120dB at 1kSPS; Crosstalk: -125dB; Total harmonic distortion: -108dB at 50Hz and 60Hz

Single pole power supply range: analog power supply 3V to 5V, digital power supply 1.8V to 3.6V

Low power consumption: 2.3mW per channel

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

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

• Fault detection and device testing functions

SPITM data interface and four universal input/output interfaces

• Excellent ESD capability

• Packaging: QFP-64, BGA-64

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