Datasheet
Datasheet
TEK.COM14
DC Current
DC Current Accuracy ±(% of reading + % of range)
Range Resolution
Burden
Voltage
24 Hours
T
CAL
±1°C
90 Days
T
CAL
±5°C
1 Year
T
CA
L ±5°C
2 Year s
T
CAL
±5°C
Temperature
Coefficient
10 µA
11
10 pA < 0.13 V 0.007 + 0.002 0.035 + 0.005 0.045 + 0.005 0.055 + 0.005 0.0030 + 0.0006
100 µA 100 pA < 0.14 V 0.010 + 0.020 0.035 + 0.005 0.045 + 0.005 0.055 + 0.005 0.0020 + 0.0005
1 mA 1 nA < 0.17 V 0.007 + 0.006 0.035 + 0.005 0.045 + 0.005 0.055 + 0.005 0.0020 + 0.0005
10 mA 10 nA < 0.17 V 0.006 + 0.003 0.018 + 0.005 0.020 + 0.005 0.025 + 0.005 0.0015 + 0.0005
20 mA
12
10 nA < 0.05 V 0.010 + 0.150 0.015 + 0.025 0.020 + 0.025 0.025 + 0.025 0.0015 + 0.0025
100 mA 100 nA < 0.20 V 0.010 + 0.030 0.015 + 0.005 0.020 + 0.005 0.025 + 0.005 0.0015 + 0.0005
1 A 1 mA < 0.55 V
13
0.020 + 0.004 0.030 + 0.005 0.040 + 0.005 0.050 + 0.005 0.0030 + 0.0005
3 A 1 mA < 1.70 V
13
0.030 + 0.004 0.040 + 0.004 0.050 + 0.004 0.060 + 0.004 0.0030 + 0.0005
DC Current Characteristics
Overrange 20% on 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, and 1 A ranges
1% on 3 A and 10 A ranges
Front-Panel Input Protection Externally accessible 3 A, 250 V fast-acting fuse, 5 × 20 mm:
Keithley replacement part number FU-99-1
Plug-in Module Input Protection Fuse provided in 7700 and 7702 plug-in modules; PCB-mounted 3 A, 250 V, fast-acting fuse
Autozero Off Error Add ±0.004% of range within ±1°C and ≤10 minutes since last autozero
Add ±0.015% of range within ±5°C and ≤60 minutes since last autozero
Nominal Shunt Resistance
14
10 μA 100 μA 1 mA 10 mA 100 mA 1 A 3 A
10 kΩ 1 kΩ 100 Ω 10 Ω 1 Ω 100 mΩ 100 mΩ
DC Current Measurement Noise Characteristics
15
Measurement Rate in NPLC Digits
4-wire RMS Noise Uncertainty
(in % of range + fixed base)
5
6.5
0
1 0
0.1
16
0.0009 + 10.0 pA
0.1
5.5
0.0015 + 3.5 nA
0.01 0.0030 + 3.5 nA
0.0005 4.5 0.0200 + 5.0 nA
Notes
11. Specifications apply to front-panel inputs only.
12. 20 mA range for 27xx emulation mode only.
13. Add 1.5 V when using with plug-in modules.
14. Guaranteed by design.
15. Noise values apply to open terminals for 50 Hz and 60 Hz operation only. Measurements through a card may introduce additional noise.
16. Line sync on.