Datasheet
DC POWER SUPPLIES
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Condence
A Tektronix Company
Series 2280S
Precision Measurement, Low Noise,
Programmable DC Power Supplies
Trend Analysis and Load Current Characterization
Use the built-in graphing function to monitor the stability of the load
current or capture and display a dynamic load current. Or, use it to view
a start-up or turn-off load current. Series 2280S supplies can take mea-
surements quickly and store up to 2,500 measurement points. In addition
to displaying a voltage or current waveform or both, they can compute
statistics on the stored data. Statistical calculation options include average,
maximum, minimum, peak-peak, and standard deviation. All the informa-
tion you need is accessible through a few display menus.
Figure 8. Monitor voltage, current, or both with the graphing function.
Automate a test quickly and easily with KickStart software
Set up an automated test for the Series 2280S supplies in four simple steps
with the KickStart start-up software. KickStart is available for installation
on your PC via a free download from www.keithley.com. Once the program
is open, perform these steps: create a test file, select the 2280S power sup-
ply, select the power supply application, and enter the test parameters. Run
the test, and get results without having to write a line of code. KickStart
provides both graph and spreadsheet displays. Data is saved to the test file,
and the data can be exported to data analysis programs. Or take a screen
shot of the plot for reproduction in test reports. Up to 15,000 data points
can be stored. KickStart may be all the software you ever need.
Figure 9. KickStart DC power main screen.
Figure 10. KickStart plot with measurement table.
Optimized Performance for Production Test
Series 2280S supplies are as powerful in a production test system as
they are flexible on the R&D benchtop. In addition to their List Mode
function, several other Series 2280S features help minimize test time in
automated systems. For example, an external trigger input allows hardware
synchronization and control by other instruments in the test system. To
eliminate many system delays, Series 2280S supplies produce a “mea-
surement complete output” to signal the test system when the supplies
have completed their required actions. To reduce measurement time, the
reading speed can be increased by reducing the acquisition time from
power line cycle integration times, 16ms at 60 Hz (20 ms at 50 Hz), to
33µs (40µs). Furthermore, the Series 2280S supplies can sink up to 0.45A.
Thus, these supplies can quickly discharge a voltage level and change to a
different voltage.
Figure 11. Series 2280S rear panel showing the rear output connector
with remote sense inputs, digital I/O, and the three interfaces (GPIB,
USB, and LAN).
A choice of front or rear panel terminals provides enhanced connection
flexibility. For maximum voltage accuracy, 4-wire remote sensing ensures
that the output voltage programmed is actually the level applied to the
load. In addition, the sense lines are monitored in order to detect any
breaks in them. These features ensure any production problems can be
quickly identified and corrected. Four additional digital I/O pins can pro-
Precision measurement, low noise, programmable DC power supplies
Precision measurement, low noise, programmable DC power supplies