The General Electric (GE) VMIVME-3122 is a high-performance analog-to-digital converter (ADC) designed for VMEbus system applications, which plays an important role in industrial automation and control systems with its high resolution and multi-channel input capabilities. The 16-bit analog-to-digital converter provides high-precision analog to digital signal conversion, supports 64 differential or single-ended input channels, and has software-selectable conversion rates up to 100 kHz.
Designed with industrial applications in mind, the VMIVME-3122 features automatic control gains and programmable bus interrupters that enable it to handle a wide range of analog input traffic while reducing dependence on the host processor. In addition, the converter supports multiple modes of operation, including automatic scanning, data burst and external synchronization, as well as three trigger modes and three scan modes, providing great flexibility to meet different application needs.
The converter supports a wide range of inputs including ± 2.5V, ± 5V, ± 10V,0 to + 5V and 0 to + 10V, and is equipped with a dual port data buffer of 16 to 1,024 words for efficient storage and transmission of data. In addition, it has the advantages of dynamic range and channel density, and can interface directly with VMIC’s signal conditioning board to support the digital processing of thermocouples, thermal resistors and strain gauges.
The high reliability design of the VMIVME-3122 includes isolated power supplies, relays, I/O and Ethernet ports that provide 1500Vrms isolation and surge protection to enhance system reliability and reduce downtime. In addition, it supports multi-board synchronization, up to 16 boards can start scanning at the same time, and provides a variety of configuration options, such as programmable channel gain, channel block size, and buffer size, to meet the needs of different applications.
The analog-to-digital converter is widely used in factory automation, process control, data acquisition systems, training simulators and laboratory instruments, providing strong support for applications requiring high precision and multi-channel analog signal conversion