Title :
Low power TAC & QVC circuits for balloon borne experiments
Author :
Inaba, Susumu ; Anraku, Kazuaki ; Imori, Masatosi
Author_Institution :
Nat. Lab. for High Energy Phys., Ibaraki, Japan
fDate :
4/1/1990 12:00:00 AM
Abstract :
TAC (time-to-amplitude converter) and QVC (charge-to-voltage converter) circuits have been developed for balloon-borne experiments. The aim of the development is to reduce power consumption. The circuits were optimized by a simulation program on a workstation. The TAC measures a time interval and QVC measures an amount of charge. The time resolution of the TAC is 2 ns/count for a full scale of 8 μs (12-b). The power consumption is 55 mW/channel. The QVC offers a resolution of 0.6 pC/count for a full scale of 1200 pC(11-b) and consumes 80 mW/channel. It is concluded that the design goals of the simulation have been achieved in the prototype TAC and QVC circuits
Keywords :
nuclear electronics; QVC circuits; TAC circuits; balloon borne experiments; charge-to-voltage converter; power consumption; time interval; time resolution; time-to-amplitude convertor; Capacitors; Charge measurement; Circuits; Current measurement; Energy consumption; Scintillation counters; Time measurement; Timing; Voltage; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
