Specifications A-3
ADDITIONAL SOURCE SPECIFICATIONS
COMMAND PROCESSING TIME: Maximum time required for the output to begin to change following the receipt of :SOURce:VOLTage|CURRent
<nrf> command.Autorange On: 10ms. Autorange Off: 7ms.
OUTPUT SETTLING TIME (typical to 10% of final value): <2s, 1pA and 10pA ranges; <50ms, 100pA through 10nA ranges; <5ms, 100nA through
100mA ranges.
OUTPUT SLEW RATE: 30V/ms, any V range, 10mA compliance.
COMMON MODE VOLTAGE: ±42VDC maximum.
4-WIRE SENSE: Up to 1V drop per load lead, 10Ω maximum per sense lead, 100µA range and up. For details on using 4-wire sense with the 10µA
range and below, refer to the User’s Manual.
OVER TEMPERATURE PROTECTION: Internally sensed temperature overload puts unit in standby mode.
RANGE CHANGE OVERSHOOT: Overshoot into a fully resistive 100kΩ load, 10Hz to 1MHz BW, adjacent ranges, 100mV typical, except 20V/200V
range boundary.
MINIMUM COMPLIANCE VALUE: 0.1% of range.
MEASURE SPECIFICATIONS
1
Voltage Measurement Accuracy (4-wire sense)
3
Max. Input
2
Accuracy (23°C ± 5°C)
Range Resolution Resistance 1 Year, ±(%rdg + volts)
200.000 mV 1 µV >10
16
Ω 0.012% + 350 µV
2.00000 V 10 µV >10
16
Ω 0.012% + 350 µV
20.0000 V 100 µV >10
16
Ω 0.015% + 1.5 mV
200.000 V 1mV >10
16
Ω 0.015% + 10 mV
TEMPERATURE COEFFICIENT (0°–18°C & 28°–40°C): ±(0.15 × accuracy specification)/°C.
Current Measurement Accuracy (2- or 4-wire sense)
4
Accuracy (23°C ± 5°C)
Max. Voltage 1 Year
Range Resolution *Burden
5
±(%rdg + amps)
1.00000 pA 10 aA < 1mV 1.0 % + 7 fA
10.0000 pA 100 aA < 1mV 0.50 % + 7 fA
100.000 pA 1 fA < 1mV 0.15 % + 30 fA
1.00000 nA 10 fA < 1mV 0.050 % + 200 fA
10.0000 nA 100 fA < 1mV 0.050 % + 2 pA
100.000 nA 1 pA < 1mV 0.050 % + 20 pA
1.00000 µA 10 pA < 1mV 0.050 % + 300 pA
10.0000 µA 100 pA < 1mV 0.050 % + 2 nA
100.000 µA 1 nA < 1mV 0.025 % + 6 nA
1.00000 mA 10 nA < 1mV 0.027 % + 60 nA
10.0000 mA 100 nA < 1mV 0.035 % + 600 nA
100.000 mA 1 µA < 1mV 0.055 % + 6 µA
TEMPERATURE COEFFICIENT (0°–18°C & 28°–40°C): ±[(0.15 × accuracy specification) + 1fA]/°C.
INPUT CURRENT: <3fA at 23°C, <40% RH; typically ±0.5fA/°C around 23°C, <40% RH.
ADDITIONAL MEASURE SPECIFICATIONS
OUTPUT SETTLING TIME (typical to 10% of final value): <2s, 1pA and 10pA ranges; <50ms, 100pA through 10nA ranges; <5ms, 100nA through
100mA ranges.
CURRENT NOISE: When observed over 1 minute intervals, peak to peak noise will be within 400aA during 90% of the intervals using Autofilter
(5s 10% to 90% rise time), with triax connectors capped, Autozero OFF, Source Delay = 0, on the 1pA range for at least 3 minutes.
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