​The 100 through 120 current sources have been discontinued. Please consider the Model 121 DC current source.

Models 100 through 120 Specifications

 100101102110CS120CS
Output
Output current
(10 µA preset)
Internally
programmable
from 1 µA to 1 mA
Internally
programmable
from 1 µA to 1 mA
Internally
programmable
from 1 µA to 1 mA
Externally programmable
from 1 µA to 10 mA
1 µA, 3 µA, 10 µA, 30 µA, 100 µA, 300 µA, 1 mA, 3 mA, 10 mA, 30 mA, 100 mA switch selectable; externally programmable from 1 µA to 100 mA.
Accuracy at 10 µA1 0.05% of output0.05% of output0.05% of output0.05% of output0.05% of output,
0.1% on all other
switched ranges
Temperature coefficient
(% output/°C ambient)
0.005% of
output per °C
0.005% of
output per °C
0.005% of
output per °C
<0.01% of
output per °C
<0.01% of
output per °C
Compliance voltage 2.5 V 5 V 8 V 11 V 11 V up to 50 mA,
10 V up to 100 mA
Line regulation NANALess than 0.01% change in output for 10% change in line voltages within specified voltage range (See power)Less than 0.01% change in output for 10% change in line voltages within specified voltage range (See power)Less than 0.01% change in output for 10% change in line voltages within specified voltage range (See power)
Load regulation Less than 0.01% change in output current from 1% to 100% compliance voltageLess than 0.01% change in output current from 1% to 100% compliance voltageLess than 0.01% change in output current from 1% to 100% compliance voltageLess than 0.01% change in output current from 1% to 100% compliance voltageLess than 0.01% change in output current from 1% to 100% compliance voltage.
AC current ripple NANALess than 0.01% of scale + 1 nA (RMS) in a property shielded system.Less than 0.01% of scale + 1 nA (RMS) in a property shielded system.Less than 0.01% of scale + 40 µV (RMS) in a property shielded system.
General
Ambient temperature range15 °C to 35 °C15 °C to 35 °C15 °C to 35 °C15 °C to 35 °C15 °C to 35 °C
Power 4 AA alkaline batteriesOne 9 V alkaline battery12 VAC, 3 VA
wall-mount supply selected for AC
power required
90 to 125, or
210 to 250 VAC,
50 or 60 Hz, 3 VA
90 to 125, or
210 to 250 VAC,
50 or 60 Hz, 3 VA
Battery life 1 year6 monthsNANANA
Enclosure type Plastic, benchtopPlastic, benchtopPlastic, benchtopBenchtopBenchtop
Size 95 mm W × 33 mm H × 158 mm D (3.7 in × 1.3 in × 6.2 in) 95 mm W × 33 mm H × 158 mm D (3.7 in × 1.3 in × 6.2 in) 95 mm W × 33 mm H × 158 mm D
(3.7 in × 1.3 in × 6.2 in)
106 mm W × 41 mm H × 164 mm D (4.2 in × 1.6 in × 6.5 in) 106 mm W × 41 mm H × 164 mm D (4.2 in × 1.6 in × 6.5 in)
Weight 0.3 kg (0.7 lb)0.3 kg (0.7 lb)0.3 kg (0.7 lb)0.5 kg (1.1 lb)0.5 kg (1.1 lb)
CE mark approval YesYesNoNoNo
1 Programming resistor determines accuracy when used.