2220, 2220G,
2230, 2230G
Multi-Channel USB and USB/GPIB
Programmable DC Power Supplies
The Models 2220, 2220G, 2230, and 2230G Multi-Channel Programmable DC Power Supplies com-
bine two and three channels of output power to cost-effectively characterize and test a wide range of
devices, circuit boards, modules, and products that require more than one power source. The Models
2220-30-1 and 2220G-30-1 supplies provide two channels, with each channel capable of outputting
up to 30V and up to 1.5A. The Models 2230-30-1 and 2230G-30-1 include two 30V/1.5A channels
and add a 6V channel with up to 5A output for powering digital circuits. These multi-channel power
supplies offer an excellent combination of performance, versatility, and ease of use to maximize the
information from characterization or test as quickly and as easily as possible. They perform as effec-
tively in automated test systems as they do in manual instrument configurations. The USB interface is
standard on all models; the “G” versions add a GPIB interface.
• Dual and triple output
models with two 30V/1.5A
(45W) channels and a 6V/5A
(30W) channel on the triple
output supply
• All channels are independently
controlled and have isolated
outputs for maximum flexibility
• All channels have remote
sensing to ensure that
programmed voltage is
accurately applied to the load
Independent and Isolated Outputs
Since each channel in these multi-channel power supplies is completely independent and isolated
from each other, these power supplies can be used to provide power to two circuits that are optically
isolated or transformer-isolated from each other and have different reference points. Their isolated
channels eliminate the need for a second power supply to power one of the isolated circuits.
• Two 30V channels can be
combined either in series to
double output voltage or in
parallel to double output current
Additionally, each channel can be independent-
ly controlled, so channels can be individually
2230-30-1 TRIPLE CHANNEL DC POWER SUPPLY
• 0.03% basic voltage output
accuracy and 0.1% current
accuracy ensure quality test data
turned on and turned off at any time. Thus,
these power supplies can be used to power up a
CH1 0-30V
CH2 0-30V
CH3 0-5.5V
circuit with multiple voltage levels (such as a dig-
ital circuit) that must be turned on in a specified
time sequence. Furthermore, the timer capability
allows you to set up unattended tests that turn
off the channels after a programmed time inter-
val to protect a device-under-test (DUT) from
potential damage due to the continuous appli-
cation of power beyond a recommended time
interval. Both isolated and independent chan-
nels provide excellent versatility and flexibility to
address a wide range of test applications.
• Low noise, linear regulation with
<3mVpp ripple and noise
• Voltage and current outputs
for all channels are displayed
simultaneously for easy
+
–
–
+
observation of each output state
• Keypad entry allows fast, precise
entry of output values
• USB interface standard on all
versions for remote control; “G”
versions include USB and GPIB
interfaces
Accurate Power Delivery to the Load
With basic voltage setting accuracy and voltage
readback accuracy of 0.03% for each channel,
the exact voltage programmed for any channel
is applied at the output terminals. Plus, the
Power two isolated circuits with isolated
output channels.
rear panel connections for each channel include remote sense terminals that compensate for voltage
drops in the power supply leads. This helps to ensure that the correct voltage is delivered accurately
to the load terminals of the DUT. Many other multi-channel power supplies do not provide remote
sensing, which reduces overall system accuracy.
1.888.KEITHLEY (U.S. only)
www.keithley.com
A Greater Measure of Confidence
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