GX7193 ADC Replaces AD7193 for Flow Measurement Applications

Flow measurement is an important parameter in industrial process measurement, flow measurement involves a wide range of applications, process measurement, energy measurement, environmental protection, transportation and other high-energy-consuming areas of the flow measurement of the demand for the rapid growth of the flow measurement technology for the flow measurement of new requirements, not only requires the flow measurement instrumentation to withstand high temperatures and high pressures, but also automatically compensate for parameter changes on the impact of the measurement accuracy, this paper recommends using the This paper recommends the use of a domestic 24-bit ADC as the A/D conversion in the measurement process to provide a high-precision measurement program.

The domestic 24-bit ADC has an internal integrated PGA for bridge sensors, thermocouples and resistance temperature devices, with low noise, low drift, high resolution and other advantages, can be software/hardware 100% replacement of the AD7193, and reduce production costs.

In addition, the ADC‘s programmable gain steps of 1/2/4/8/16/32/64/128 can be flexibly selected, with data rates ranging from 47SPS to 4.8kSPS. Also provides 50Hz/60Hz simultaneous rejection option, the output data rate from the device can be configured from 47SPS up to 4800SPS, the device also provides a channel sequence function to measure 4 differential inputs or 8 pseudo-differential inputs automatically. Therefore, this solution to replace the AD7193 has the advantages of high reliability, high accuracy, and cost-effective; GXSC can provide technical support and supply channels throughout the entire process if required.

GX7193 features are introduced:

1, data rate: 4.7SPS to 4.8kSPS

2, integral nonlinearity: 2ppm

3, RMS noise: 15nV at 10SPS (gain = 128)

4, 22.410SPS under the noise-free bit (gain = 1)

5、Offset drift:3nV/°C(Gain=128)

6, gain drift: 0.5ppm/°C

7, power supply: AVDD: 2.7V to 5.25V or Shi 2.5V, DVDD: 2.7V to 5.25V

8, internal or external clock, while 50Hz/60Hz suppression

9, 28-pin TSSOP package available