The invention provides a universal analog-to-
digital converter testing device, which at least comprises an analog-to-
digital converter testing module, a plurality of testing interface boards, a testing mainboard, an external power supply, a
signal generator and a
logic analyzer, and is characterized in that the analog-to-
digital converter testing module is sequentially connected to the testing interface boards and the testing mainboard; the external power supply, the
signal generator and the
logic analyzer are connected and are all connected to the analog-to-digital converter test module. The testing device can work in a modularized and independent mode and is high in expandability, different functions can be achieved only through a simple building block building mode, each component can operate independently and can be formed in a spliced mode when needed, the more spliced module assemblies are, the stronger the achieved functions are, operation is easy,
maintainability is good, and the testing device is suitable for popularization and application. And the test problem of the analog-to-digital converter in practice can be well solved.