Replace ADS1258, GX1258 is widely used in industrial process control and multi-channel data acquisition.

Industrial process control to obtain data, in the real-time requirements are not high but the accuracy of the demand for high requirements, you can choose 24-bit multi-channel high-precision ADC chip combined with the controller chip, you can realize the multi-channel data acquisition function. This article introduces 24-bit 16-channel GX1258C alternative TI‘s ADS1258 for industrial process control and multi-channel data acquisition program, the data rate up to 125kSPS, can ensure the stability and accuracy of the program acquisition data transmission.

GX1258 uses an advanced CMOS structure, there is an internal 16-bit SAR A/D converter, with sample hold, reference, clock and serial data interface functions. Data can be synchronized not only using the internal clock output but also the external data clock. It also supports a 20-pin SOIC package, and can operate properly over the temperature range of -40°C to 85°C.

In the entire temperature range, this GX1258 rated sampling rate of up to 250kHz; precision resistors provide a variety of input ranges such as ± 10V and 0 to 5V. It can also realize power consumption of less than 100mW under a single +5V power supply operating condition, and in addition the digital power supply is compatible with 3.3V~5.5V power supply. In addition, it can output synchronized pulses for use with standard DSP processors.

GX1258 main performance introduction:

- Input range: 4V, 5V, 10V, ±3.3V, ±10V, ±5V

- ±2LSB INLMAX , ±1LSB DNLMAX

- SPI serial output with daisy chain (TAG) capability

- Use internal or external reference

- Typical power consumption of 70mW at 250KSPS

- Simple DSP interface

Summary: GX1258 in the price has a certain advantage in the premise, compared to the TI ADS1258 performance is also excellent, GXSC can provide stable supply and technical support.