Industrial infrared detection application solution based on 14 bit analog-to-digital converter GX9253 and transceiver GX2711, replacing AD9253/TLK2711

Infrared detectors, as a key device capable of sensing and receiving infrared radiation and converting it into electrical signals, are widely used in industrial fields for equipment fault diagnosis, quality inspection, process monitoring, and other aspects. Infrared detectors can monitor the temperature distribution and changes of equipment in real time, and detect equipment failures and potential safety hazards in a timely manner. Meanwhile, infrared detectors can also be used for automation control in industrial production, improving production efficiency and product quality. Their main core indicators are as follows:

Detection range. The working band is divided into short wave, medium wave, long wave or wide band.

Sensitivity: Generally requires a noise equivalent temperature difference of less than 50mK.

Resolution: The pixel size and array size of the detector. If it is an optical lens, lens parameters such as focal length, aperture, infrared transmission material, etc. need to be considered. For signal processing and algorithms, the main focus is on noise suppression, target recognition, data output, etc.

Power consumption and size: Handheld devices require low power consumption and small size, such as drones or wearable devices that need to be lightweight.

One of the core components of infrared detection is the readout circuit, which converts the signals detected by the infrared detector into digital signals for processing, achieving data extraction and storage. The 14 bit high-precision analog-to-digital converter is an important component of the infrared detector readout circuit, and its performance directly affects the overall performance of the readout circuit. The GXSC 4-channel 14 bit 80MSps/100MSps/110MSps analog-to-digital converter GX9253 is highly suitable for infrared detection signal conversion requirements, with excellent dynamic performance and low power consumption characteristics.

The GX9253 is equipped with a built-in sample and hold circuit, powered by a 1.8V single power supply and compatible with LVPECL/CMOS/LVDS sampling rate clock signals to fully utilize its performance. For most applications, there is no need for an external reference power source or driving device. To achieve the appropriate LVDS serial data rate, GX9253 will automatically multiply the sampling rate clock. It provides a data clock output for capturing data at the output end, and a frame clock output for sending new output byte signals. It also supports each channel to enter power-saving mode separately; When all channels are disabled, the typical power consumption is 2.2mW.

The GX2711 transceiver chip is suitable for ultra high speed bidirectional point-to-point data transmission in infrared detection equipment, supporting effective serial interface speeds ranging from 1.6Gbps to 3.2Gbps, providing 3.2Gbps data bandwidth, and benchmarking performance against imported model TLK2711. It is an ideal choice for high-speed backplane interconnection and point-to-point data links.