Datasheet
SMU INSTRUMENTS
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A Greater Measure of Confidence
2651A
50A, High Power System
SourceMeter
®
SMU Instrument
DC POWER SPECIFICATIONS
MAXIMUM OUTPUT POWER: 202W maximum.
SOURCE/SINK LIMITS
1
:
Voltage: ±10.1V at ±20.0A, ±20.2V at ±10.0A, ±40.4V at ±5.0A
2
.
Four-quadrant source or sink operation.
Current: ±5.05A at ±40V
2
, ±10.1A at ±20V, ±20.2A at ±10V
Four-quadrant source or sink operation.
CAUTION: Carefully consider and configure the appropriate output-off state and source and
compliance levels before connecting the Model 2651A to a device that can deliver energy. Failure to
consider the output-off state and source and compliance levels may result in damage to the instru-
ment or to the device under test.
PULSE SPECIFICATIONS
MINIMUM PROGRAMMABLE PULSE WIDTH
3
: 100µs. Note: Minimum pulse width for settled
source at a given I/V output and load can be longer than 100µs.
PULSE WIDTH PROGRAMMING RESOLUTION: 1µs.
PULSE WIDTH PROGRAMMING ACCURACY
3
: ±5µs.
PULSE WIDTH JITTER: 2µs (typical).
PULSE RISE TIME (TYPICAL):
Current Range R
load
Rise Time (typical)
50 A
0.05 W
26 µs
50 A
0.2 W
57 µs
50 A
0.4 W
85 µs
20 A
0.5 W
95 µs
50 A
0.8 W
130 µs
20 A
1 W
180 µs
10 A
2 W
330 µs
5 A
8.2 W
400 µs
+20A
+30A
+50A
–50A
–10A
+10A
+5A
–5A
–20A
–30A
+10V
–10V
+20V–20V 0V
0A
+40V–40V
Pulse
DC
3
4
7
6
5
2
1
Region
Region
Maximums
Maximum
Pulse Width
3
Maximum
Duty Cycle
4
1 5 A at 40 V DC, no limit 100%
1 10 A at 20 V DC, no limit 100%
1 20 A at 10 V DC, no limit 100%
2 30 A at 10 V 1 ms 50%
3 20 A at 20 V 1.5 ms 40%
4 10 A at 40 V 1.5 ms 40%
5 50 A at 10 V 1 ms 35%
6 50 A at 20 V 330 µs 10%
7 50 A at 40 V 300 µs 1%
NOTES
1. Full power source operation regardless of load to 30°C ambient. Above 30°C or power sink operation, refer to
“Operating Boundaries” in the Model 2651A Reference manual for additional power derating information.
2. Quadrants 2 and 4 power envelope is trimmed at 36V and 4.5A.
3. Times measured from the start of pulse to the start off-time; see figure below.
Pulse Level
Bias Level
Start t
on
Start t
off
90%
10%
t
on
t
off
10%
4. Thermally limited in sink mode (quadrants 2 and 4) and ambient temperatures above 30°C. See power equa-
tions in the Model 2651A Reference Manual for more information.
Model 2651A specifications
Model 2651A specifications
The Model 2651A supports GPIB, LXI, Digital I/O, and Keithley’s TSP-Link Technology for multi-channel synchronization.