Compatible with ADS1248, GX1248 can be used for RTD/TC Temperature Acquisition Module

Distributed I/O temperature acquisition module is used for industrial field instrumentation, usually using thermocouples and RTDs (Resistance Temperature Detectors) as temperature sensors, thermocouples have a very high temperature measurement range (e.g., 2300 ℃) and a fast response speed, and RTDs have a higher temperature measurement accuracy and stability.

GX1248 with high precision and high integration product architecture, can be a single chip to support thermocouple temperature measurement and RTD or NTC and other cold end compensation methods, can also be used alone for any type of RTD (2-wire, 3-wire or 4-wire), GX1248 can be software and hardware compatible with ADS1248, can also be directly replaced in situ. RTD/TC temperature acquisition module diagram is as follows: 

GX1248 Performance description: 

1, the ADC includes many integrated features with low noise, programmable gain amplifiers, with single-cycle stabilizing digital filters and internal oscillators.

2, provides a built-in low-drift voltage reference and two matched programmable excitation current sources (IDAC). The input multiplexer supports four differential inputs.

3, The multiplexer integrates sensor loss detection, thermocouple voltage bias, system monitoring, and general purpose digital V/os. The PGA provides selectable gain up to 128 V/V. 

4, Up to 8/4 single-ended/differential channels with internal reference: 8 ppm/c and 0.05% accuracy, with simultaneous suppression of 50Hz and 60Hz at a 5/10/20SPS data rate 

5, Analog power supply: unipolar (2.7V to 5.25V) and bipolar (±2.5V) operation, digital power supply: 2.7V to 5.25V 

6. SPI interface: communicates with microcontrollers or other digital devices through the SPI interface for easy data transfer and control.