Title :
A CMOS multichannel IC for pulse timing measurements with 1-mV sensitivity
Author :
Loinaz, Marc J. ; Wooley, Bruce A.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
fDate :
12/1/1995 12:00:00 AM
Abstract :
A multichannel data acquisition circuit that measures the occurrence times of input pulses relative to a 62.5-MHz clock has been integrated in a 1.2-μm CMOS technology. The pulse timing measurement channels are sensitive to input pulses with peak amplitudes as small as 1 mV. Each channel consists of a wideband preamplifier, a tail-cancellation filter, a timing discriminator with time-walk compensation, and a time digitizer. A phase-locked loop (PLL) reference for the time digitizer is included in the circuit. An overall channel timing error of 0.46 ns RMS has been achieved, with negligible channel-to-channel crosstalk, at a power dissipation of 50 mW/channel
Keywords :
CMOS integrated circuits; compensation; data acquisition; mixed analogue-digital integrated circuits; time measurement; 1.2 micron; 62.5 MHz; CMOS multichannel IC; PLL reference; multichannel data acquisition circuit; phase-locked loop reference; pulse timing measurements; tail-cancellation filter; time digitizer; time-walk compensation; timing discriminator; wideband preamplifier; CMOS integrated circuits; CMOS technology; Clocks; Data acquisition; Integrated circuit measurements; Integrated circuit technology; Phase locked loops; Pulse circuits; Pulse measurements; Timing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
