Title :
A 32 channel TDC on a VME board
Author :
Bassini, R. ; Boiano, C. ; Brambilla, S. ; Carriero, C. ; Malatesta, M.
Author_Institution :
Ist. Nazionale di Fisica Nucl., Milan, Italy
fDate :
6/1/1998 12:00:00 AM
Abstract :
A 32 channel 12 bit Time to Digital Converter (TDC) has been designed to fit in a single unit VME 6U. 32 Time to Amplitude Converter (TAC) sections and a multiplexer circuit are followed by a fast 12 bit ADC. The total handling and conversion time for all the channels is less than 10 μs. The differential nonlinearity is kept below 2% of the average channel width. The Common Start/Stop mode, the Full Scale Range, the individual low and high threshold values and the self-test-mode are software selectable. The module has Zero Suppression and Chained Block Transfer protocol capabilities
Keywords :
analogue-digital conversion; emitter-coupled logic; high energy physics instrumentation computing; nuclear electronics; peripheral interfaces; pulse height analysers; 10 mus; 12 bit; 32 channel time to digital converter; OTA; chained block transfer protocol capability; common start/stop mode; control logic; data formatting; differential ECL pulses; differential nonlinearity; fast ADC; full scale range; high threshold values; integrator; low threshold values; multiplexer circuit; nuclear physics instrumentation; self-test-mode; single unit VME; software selectable; time to amplitude converter sections; zero suppression capability; Built-in self-test; Capacitors; Circuits; Instruments; Linearity; Multiplexing; Nuclear measurements; Protocols; Switches; Time measurement;
Journal_Title :
Nuclear Science, IEEE Transactions on
