Combining channels in parallel to output higher current
Higher pulse current can be output by connecting two 2600B instrument channels in parallel.
The figure below illustrates the connection scheme of two Model 2602B channels connected in
parallel. Two Model 2602B channels can output up to 20 A at 18 V (see Combining SMU outputs (on
page 2-27)). The current delivered to the device under test (DUT) is the sum of the currents output by
SMU channels (I
T
). Combining the two 2600B instrument channels expands the power envelope.
I
1
Single SMU maximum pulse current: 10 A
I
2
Single SMU maximum pulse current: 10 A
I
T
Paralleled SMU channels maximum pulse current (as shown): 20 A
Output-off modes
Carefully consider and configure the appropriate output-off state, source function, and
compliance limits before connecting the 2600B to a device that can deliver energy (for
example, other voltage sources, batteries, capacitors, solar cells, or other 2600B
instruments). Configure recommended instrument settings before making connections to the
device. Failure to consider the output-off state, source, and compliance limits may result in
damage to the instrument or to the device under test (DUT).
Turning off the 2600B output may not completely isolate the instrument from the external circuit. You
can use the output-off mode to place the 2600B in a noninteractive state during idle periods. The
available output-off modes are normal, high-impedance, and zero.
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