Keysight Technologies 3458A Guide D'utilisation page 433

D Optimizing Throughout
and Reading Rate
(From Product Note 3458A-1)
In the past decade and a half, microcomputers have greatly improved both their
internal speed and their speed of communication with other equipment. The
actual clock rates of microcomputers used in instrumentation has gone from
under 1 MHz to over 12 MHz and the data bus has gone from 8 bits to 16 bits.
During this same time period, the system multimeter has undergone an even
more remarkable evolution in terms of both its speed of operation and its reading
rate. In 1975, 24 readings per second with 5 1/2 digits of resolution was
considered very fast; today the 3458A multimeter can make 50,000 readings per
second with 5 1/2 digits-- two thousand times faster. This extraordinary increase
in speed is attributable not simply to faster microcomputers, but to advances in
the analog to digital conversion process, a better utilization of the microcomputer,
and a better understanding of the application needs of the system user.
Keysight 3458A User's Guide
Introducing the 3458A
Maximizing the Testing Speed
Purpose 437
DC Volts, DC Current and Resistance
AC Volts and AC Current
Optimizing the Testing Process Through Task Allocation
A Benchmark 452
Optimizing Throughout and Reading Rate
434
435
438
445
D
449
433