Benchmark AD4115, GX4115 to meet the analog signal acquisition replacement program for engineering vehicles

Modern engineering vehicles are widely used and frequently operated, and in the complex operating environment of engineering vehicles, accurate and efficient acquisition of various types of analog signals is the key to ensure stable operation of the vehicle and achieve precise control. In the operation of engineering vehicles need to timely and accurately grasp the operating status of engineering vehicles, the data acquisition system of engineering vehicles can monitor the working condition and parameters of the key parts of engineering vehicles, and at the same time, it has the function of recording the collected data.

The data acquisition system uses the GXSC low-power, low-noise 24-bit GX4115, the GX4115 can be a direct replacement for the AD4115. GX4115 integrates 8 fully differential or 16 single-ended analog front-end (AFE), and the key analog and digital signal conditioning module can be used for each analog input channel configuration of the 8 independent settings to support the ± 10V and 0-20mA of 0.1%. It supports ±10V and 0-20mA 0.1% uncalibrated measurements, single supply ±40V input, and 125kSPS low noise.

The GX4115 application features are described as follows: 

- Effective resolution: 17.9bits@62.5kSPS 

- Overall uncalibrated error: 0.07% 

- Offset as low as 0.5mV 

- High AC PSRR: 50dB @50Hz~100kHz 

- High Integration: Integrated internal reference with temperature drift 6ppm/°C (Typ.), precision voltage divider resistor, integrated 2°C high accuracy temperature sensor 

- Supports 50/60Hz simultaneous suppression 

- Supports SPI CRC checking - Disconnect detection: output zeroed after input disconnection 

- Higher ESD/temperature rating: 2000V/1250V HBM/CDM 

- Digital power supply: 2.7V~5.5V; Analog power supply: 4.5V~5.5V 

- Package: 6.0mm x 6.0mm QFN (40pin) 

- Operating temperature range: -40°C to +125°C 

To sum up, the GX4115 with its advantages of high accuracy, wide input range, strong anti-interference capability, and low-power design can be an ideal choice for analog signal acquisition in engineering vehicles.