An 8-Channel Sample-and-Hold with Multiplexed Analog Output

An economical 8-channel sample-and-hold unit, serially addressable with multiplexed output, is described. The unit accepts clipped inputs of 5 nsec (nominal) FWHM; the positive overshoot of the clipped pulse is rejected. The outputs are held to ± 1 mV for ≥ 1 msec, and are linear to ±1% from 30 mV to 1 V. The output sensitivity is 10 mV per picocoulomb of input charge.