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TEK.COM/KEITHLEY-SOURCE-MEASURE-UNITS
SMU SELECTOR TABLE
MODEL
Keithley 26xxB Series High Speed System SMUs
Very Low
Current
High Density
SMUs High Power SMUs Optical SMUs
6430 2606B 2651A 2657A 2510 2510-AT 2520
Display VFD, 2line no display VFD, 2line VFD, 2line VFD, 2line VFD, 2line VFD, 2line
Channels 1 4 1 1 1 1 1
Digits 6½ 6½ 6½ 6½ 5½ 5½ 4½
Quadrants of Operation 4 2 4 4 2 2 1
Max Output Power 2 W 20 W / Channel
2000 W Pulse,
200 W DC
180 W DC 50 W DC 50 W DC
50 W Pulse, 10
W DC
SOURCE / MEASURE
I
min ±1aA ±10 0 fA ±1 pA ±1 fA ±200 μA ±200 μA 10 μA
max ±100 m A
±3A Pulse,
±3A DC
±50A Pulse,
±20A DC
±120 m A ± 5A ± 5A
5A Pulse,
1A DC
V
min ±100nV ±100nV ±1 μV ±100 μ A ±500 μV ±500 μV 330 μV
max ±200 V ±20 V ±40 V ±3000 V ±10 V ±10 V 10 V
Basic Accuracy
I 0.025% 0.020% 0.020% 0.020% 0.400% 0.400% 0.200%
V 0.012% 0.015% 0.020% 0.025% 0.100% 0.10 0% 0.300%
GENERAL FEATURES
Digitizers No No
Dual 18-
bit 1MS/s
Digitizers
Dual 18-
bit 1MS/s
Digitizers
No No
Dual 14-bit
10MS/s
Digitizers
Reading Speed 2,000 rdgs/s 20,000 rdgs/s
20,000 rdgs/s,
1 MS/s with
Digitizer
20,000 rdgs/s,
1 MS/s with
Digitizer
60 rdgs/s 60 rdgs/s
188 rdgs/s (to
memory)
Programming
SCPI
3 3 3 3
TSP
3 3 3
TSP-Link No Yes Yes Yes No No No
Digital I/O Yes Yes Yes Yes Yes Yes Yes
Contact Check No Yes Yes Yes No No No
Computer Interface
IEEE-488
RS-232
USB 2.0
LAN/LXI-C only
LAN/LXI-C
IEEE-488
RS-232
LAN/LXI-C
IEEE-488
RS-232
IEEE-488
RS-230
IEEE-488
RS-231
IEEE-488
RS-232
Compliance CE CE, NRTL listed CE, NRTL listed CE, NRTL listed CE CE CE
Keithley Specialty SMUs