Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Model 2635/2636
System SourceMeter
®
Specifications
Specifications are subject to change without notice.
Page 6 of 8
SPEC-2635_2636 Rev. A / September 2007
Specifications Category
Specifications
RANGE DISPLAY
RESOLUTION
15
VOLTAGE
BURDEN
16
ACCURACY (1 Year)
23°C ± 5°C
± (% rdg. + amps)
100.000 µA
1 nA
< 1 mV
0.02% + 25 nA
1.00000 mA
10 nA
< 1 mV
0.02% +200 nA
10.0000 mA
100 nA
< 1 mV
0.02% + 2.5 µA
100.000 mA
1 µA
< 1 mV
0.02% +20 µA
1.00000 A
10 µA
< 1 mV
0.03% +1.5 mA
1.50000 A
10 µA
< 1 mV
0.05% + 3.5 mA
Time required to reach 0.1% of final value:
Current Range
Settling Time
Current Measure
17
Settling Time
1 mA
< 100 µs (typical)
Temperature
Coefficient
± (0.15 × accuracy specification)/°C
• For temperatures (0°–18°C & 28°–50°C)
ADDITIONAL METER SPECIFICATIONS
Specifications Category
Specifications
Load Impedance
Stable into 10,000 pF (typical)
Common Mode Voltage
250 VDC
Common Mode
Isolation
> 1 G
ȍ
< 4500 pF
Overrange
101% of source range
102% of measure range
Maximum Sense Lead
Resistance
1 K
ȍ
for rated accuracy
Sense Input Impedance
> 10 G
ȍ
15
Applies when in single channel display mode.
16
Four-wire remote sense only.
17
See series 2600 SourceMeter Reference Manual Section 8 for more information.