KEI
220 Programmable Current Source
The
demand on researchers, designers, and evaluation engineers
for better device characterization has generated a
widespread need for programmable, low-level DC sources.
And, as an experienced manufacturer of automatic wafer
measuring equipment, Keithley knows the importance
to the user of instrument compatibility and ease of
system integration. In system applications, the buffer
can be loaded through the bus and the 220 or 230 can
be commanded to sequence through memory while the
controller is busy on other tasks. In a typical application,
a source can be programmed to generate an SRQ (service
request) to the controller if a system element such
as a foot pedal switch, mechanical stop, or over-temperature
condition is detected. The 230-1 is a special version
of the 230 with the necessary connectors for compatibility
with the Model 82 Simultaneous C-V Systems.
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