Specifications

60 ST-133/ST-133A Controller Manual Version 2.H
Although slowing the readout speed of a high-speed A/D converter gives some
improvement in signal-to-noise ratio, a fast A/D converter will always be noisier than
one designed for optimum noise performance. The ST-133 or ST-133A controller can be
provided with two analog converters, one optimized for high speed, the other for high
precision, as a solution to this problem. For the most common controller configurations,
there will be a 1 MHz converter for the fastest possible data collection, and a 100 kHz
converter for use where noise performance is the paramount concern. Switching between
the channels is completely under software control for total experiment automation.