Benchmark ADS1148, 16-bit 8-channel high integration GX1148 intelligent flow transmitter solution

In the production process of large-scale chemical enterprises, it is generally necessary to accurately monitor and control the flow of a variety of raw materials and products to ensure the stability of the production process and the consistency of product quality, the intelligent flow transmitter needs to be a real-time, accurate measurement of the flow rate data, and the data will be transmitted to the control system The intelligent flow transmitter needs to measure the flow data accurately in real time and transmit the data to the control system, and the control system adjusts the rotational speed of the feed pump in time according to these data, which realizes the accurate control of flow. This program uses the 16-bit 8-channel GX1148 against ADS1148, the GX1148 in the price has a certain advantage on the premise of the same excellent performance.

In the chemical production process, the fluid flow will be adjusted with the production process and frequent changes in the flow measurement accuracy and stability requirements are extremely high, GX1148 with 16-bit resolution and 8 single-ended / 4 pairs of differential channels, to ensure that the analog signal output from the flow sensor for fine quantization. Output rates of up to 2kSPS ensure measurement accuracy while ensuring measurement speed. When the data rate is 20SPS or lower, the filter can also effectively filter out 50Hz and 60Hz industrial frequency interference, which greatly improves the accuracy of flow measurement data in the complex electromagnetic environment of industrial sites.

GX1148 application features: 

1, the number of channels: 8 single-ended / 4 pairs of differential 

2, the output rate: 2kSPS 

3, continuous conversion power: 2mW 

4, high integration: 

‘ integrated internal reference: temperature drift 20ppm / ℃ (Maximum) 

’ programmable differential amplifier (integrated high impedance PGA) ‘ Integrated 2-channel high matching IDAC 

’ Integrated Bias voltage and disconnection detection 

‘ Integrated internal temperature sensor 

5. Support 50/60Hz simultaneous suppression 

6. Single-cycle build-up and automatic channel scanning 

7. Support SPI CRC check 

8. Digital power supply: 2.7V~5.25 V 

9, analog power supply: unipolar (2.7V~5.25V) & bipolar (±2.5V) 

10, package: TSSOP (28 pin), operating temperature range: -40°C to +125°C