Medium Speed Computer Interface (Digitizer) for General Purpose Data Acquisition

摘要

A simple NIM (Nuclear Instrument Module) compatible analog to digital converter which offers significant improvements over commercial units has been developed. The converter has a 2 mu s A/D and will digitize unipolar signals ranging in amplitude from one millivolt to ten volts. A key feature is the precision track-and-hold amplifier which is a front end for the analog-to-digital converter circuitry producing conversion accuracies of 0.01% in 500 ns. The settling time and the conversion time allow for a maximum data rate of 500 kHz with a total system nonlinearity of 0.06%. (ERA citation 09:050503)