A low-power, CMOS peak detect and hold circuit for nuclear pulse spectroscopy

M.N. Ericson, M.L. Simpson, C.L. Britton, M.D. Allen, R.A. Kroeger, S.E. Inderhees
Proceedings of 1994 IEEE Nuclear Science Symposium - NSS'94  
A low-power CMOS peak detecting track and hold circuit optimized for nuclear pulse spectroscopy is presented. The circuit topology eliminates the need for a rectifying diode, reducing the effect of charge injection into the hold capacitor, incorporates a linear gate at the input to prevent pulse pileup, and uses dynamic bias control that minimizes both pedestal and droop. Both positive-going and negative-going pulses are accommodated using a complementary set of track and hold circuits. Full
more » ... racterization of the design fabricated in 1.2pm CMOS including dynamic range, integral nonlinearity, droop rate, pedestal, and power measurements is presented. Additionally, analysis and design approaches for optimization of operational characteristics are discussed.
doi:10.1109/nssmic.1994.474395 fatcat:qusawsbkgbflroalgqnfawxnie