24-bit analog-to-digital converter GX1174 hardware and software replace ADS1174 applied to the gateway meter

The shutdown meter is characterized by easy expansion, easy maintenance and flexible communication methods. It adopts high-accuracy metering scheme, realizing the metering accuracy that cannot be achieved by the traditional metering chip, and is stable and reliable in long-term operation. The meter adopts advanced intelligent power data management system, beautiful and generous data display interface and flexible data communication mode. It realizes the intelligent management and human-computer interaction of power data of the power meter, which is convenient for customers to access various master systems.

Analog-to-digital converter in the gateway meter can meet the strict requirements of the gateway meter for high-precision and high-reliability power measurement. 24-bit resolution analog-to-digital converter GX1174 can accurately measure small current and voltage changes, effectively capture the small fluctuations of power signals, to meet the needs of the gateway meter for high-precision metering, the GX1174 analog-to-digital converter is compatible with hardware and software to replace ADS1174, which becomes the ideal choice for the application of gateway meter. The GX1174 analog-to-digital converter is a hardware and software compatible replacement for the ADS1174, making it an ideal choice for gateway meter applications.

The GX1174 can be selected from four modes depending on the speed, accuracy and power consumption requirements:

High-speed (HS) mode, the fastest, with a 37MHz clock up to 144kSps and a -3dB bandwidth of 70kHz.

2、High-precision(HR)mode，the highest precision, SNR up to 111.7dB, THD up to -122.9dB, power consumption only 20.8mW/channel;

3, low power (LP) mode, the output rate is the same as HR mode, but the power consumption is almost halved; low speed (LS) mode, suitable for low-speed acquisition, power consumption as low as 2.7mW/channel.

The GX1174 instrument features the following:

- 8 channels of synchronized sampling with data rates up to 144kSPS

- High-bandwidth FIR filter and low-latency SINC filter selectable

- Low power consumption: HS mode: 34.0mW/channel;

HR mode: 20.8mW/channel;

LP mode: 10.9mW/channel;

LS mode: 2.7mW/channel;

- Rail-to-Rail Input Common Mode Level

- Common mode rejection ratio: 116dB

- Analog power supply 5V; Digital power supply 1.8V

- IO power supply: 1.8V~3.3V

- SPI or frame synchronization interface, support daisy chain mode

- ESD level: HBM ±2kV, CDM ±2kV; Latch-up ±600mA

- Operating temperature range: -40°C to +85°C